Remove obsolete "headless" support

Change-Id: I18e7a4c5166163372ec0a8abbef1063668a0f5b6

8 files changed, 13 insertions, 153 deletions

diff --git a/core/java/android/view/SurfaceControl.java b/core/java/android/view/SurfaceControl.java
index b22d5cf..a06a20b 100644
--- a/core/java/android/view/SurfaceControl.java
+++ b/core/java/android/view/SurfaceControl.java
@@ -79,9 +79,6 @@ public class SurfaceControl {
     private final String mName;
     int mNativeObject; // package visibility only for Surface.java access
 
-    private static final boolean HEADLESS = "1".equals(
-        SystemProperties.get("ro.config.headless", "0"));
-
     /* flags used in constructor (keep in sync with ISurfaceComposerClient.h) */
 
     /**
@@ -232,8 +229,6 @@ public class SurfaceControl {
                     new Throwable());
         }
 
-        checkHeadless();
-
         mName = name;
         mNativeObject = nativeCreate(session, name, w, h, format, flags);
         if (mNativeObject == 0) {
@@ -619,10 +614,4 @@ public class SurfaceControl {
         }
         nativeScreenshot(display, consumer, width, height, minLayer, maxLayer, allLayers);
     }
-
-    private static void checkHeadless() {
-        if (HEADLESS) {
-            throw new UnsupportedOperationException("Device is headless");
-        }
-    }
 }
diff --git a/policy/src/com/android/internal/policy/impl/PhoneWindowManager.java b/policy/src/com/android/internal/policy/impl/PhoneWindowManager.java
index 9917f2e..4d84984 100644
--- a/policy/src/com/android/internal/policy/impl/PhoneWindowManager.java
+++ b/policy/src/com/android/internal/policy/impl/PhoneWindowManager.java
@@ -234,7 +234,6 @@ public class PhoneWindowManager implements WindowManagerPolicy {
     /** If true, hitting shift & menu will broadcast Intent.ACTION_BUG_REPORT */
     boolean mEnableShiftMenuBugReports = false;
 
-    boolean mHeadless;
     boolean mSafeMode;
     WindowState mStatusBar = null;
     int mStatusBarHeight;
@@ -847,7 +846,6 @@ public class PhoneWindowManager implements WindowManagerPolicy {
         mContext = context;
         mWindowManager = windowManager;
         mWindowManagerFuncs = windowManagerFuncs;
-        mHeadless = "1".equals(SystemProperties.get("ro.config.headless", "0"));
         mHandler = new PolicyHandler();
         mOrientationListener = new MyOrientationListener(mContext, mHandler);
         try {
@@ -3587,9 +3585,6 @@ public class PhoneWindowManager implements WindowManagerPolicy {
 
     /** {@inheritDoc} */
     public void notifyLidSwitchChanged(long whenNanos, boolean lidOpen) {
-        // do nothing if headless
-        if (mHeadless) return;
-
         // lid changed state
         final int newLidState = lidOpen ? LID_OPEN : LID_CLOSED;
         if (newLidState == mLidState) {
@@ -3822,7 +3817,7 @@ public class PhoneWindowManager implements WindowManagerPolicy {
         //        the device some other way (which is why we have an exemption here for injected
         //        events).
         int result;
-        if ((isScreenOn && !mHeadless) || (isInjected && !isWakeKey)) {
+        if (isScreenOn || (isInjected && !isWakeKey)) {
             // When the screen is on or if the key is injected pass the key to the application.
             result = ACTION_PASS_TO_USER;
         } else {
@@ -4648,10 +4643,9 @@ public class PhoneWindowManager implements WindowManagerPolicy {
     /** {@inheritDoc} */
     @Override
     public void systemReady() {
-        if (!mHeadless) {
-            mKeyguardDelegate = new KeyguardServiceDelegate(mContext, null);
-            mKeyguardDelegate.onSystemReady();
-        }
+        mKeyguardDelegate = new KeyguardServiceDelegate(mContext, null);
+        mKeyguardDelegate.onSystemReady();
+
         synchronized (mLock) {
             updateOrientationListenerLp();
             mSystemReady = true;
@@ -4678,7 +4672,6 @@ public class PhoneWindowManager implements WindowManagerPolicy {
 
     /** {@inheritDoc} */
     public void showBootMessage(final CharSequence msg, final boolean always) {
-        if (mHeadless) return;
         mHandler.post(new Runnable() {
             @Override public void run() {
                 if (mBootMsgDialog == null) {
diff --git a/services/java/com/android/server/SystemServer.java b/services/java/com/android/server/SystemServer.java
index e4af687..a6238d4 100644
--- a/services/java/com/android/server/SystemServer.java
+++ b/services/java/com/android/server/SystemServer.java
@@ -127,7 +127,6 @@ class ServerThread {
         String factoryTestStr = SystemProperties.get("ro.factorytest");
         int factoryTest = "".equals(factoryTestStr) ? SystemServer.FACTORY_TEST_OFF
                 : Integer.parseInt(factoryTestStr);
-        final boolean headless = "1".equals(SystemProperties.get("ro.config.headless", "0"));
 
         Installer installer = null;
         AccountManagerService accountManager = null;
@@ -629,10 +628,8 @@ class ServerThread {
                         R.bool.config_enableWallpaperService)) {
                 try {
                     Slog.i(TAG, "Wallpaper Service");
-                    if (!headless) {
-                        wallpaper = new WallpaperManagerService(context);
-                        ServiceManager.addService(Context.WALLPAPER_SERVICE, wallpaper);
-                    }
+                    wallpaper = new WallpaperManagerService(context);
+                    ServiceManager.addService(Context.WALLPAPER_SERVICE, wallpaper);
                 } catch (Throwable e) {
                     reportWtf("starting Wallpaper Service", e);
                 }
@@ -949,9 +946,7 @@ class ServerThread {
                 } catch (Throwable e) {
                     reportWtf("observing native crashes", e);
                 }
-                if (!headless) {
-                    startSystemUi(contextF);
-                }
+                startSystemUi(contextF);
                 try {
                     if (mountServiceF != null) mountServiceF.systemReady();
                 } catch (Throwable e) {
diff --git a/services/java/com/android/server/am/ActivityManagerService.java b/services/java/com/android/server/am/ActivityManagerService.java
index 253b6b3..265fe75 100644
--- a/services/java/com/android/server/am/ActivityManagerService.java
+++ b/services/java/com/android/server/am/ActivityManagerService.java
@@ -331,8 +331,6 @@ public final class ActivityManagerService extends ActivityManagerNative
 
     public IntentFirewall mIntentFirewall;
 
-    private final boolean mHeadless;
-
     // Whether we should show our dialogs (ANR, crash, etc) or just perform their
     // default actuion automatically.  Important for devices without direct input
     // devices.
@@ -1984,8 +1982,6 @@ public final class ActivityManagerService extends ActivityManagerNative
 
         mGrantFile = new AtomicFile(new File(systemDir, "urigrants.xml"));
 
-        mHeadless = "1".equals(SystemProperties.get("ro.config.headless", "0"));
-
         // User 0 is the first and only user that runs at boot.
         mStartedUsers.put(0, new UserStartedState(new UserHandle(0), true));
         mUserLru.add(Integer.valueOf(0));
@@ -2852,13 +2848,6 @@ public final class ActivityManagerService extends ActivityManagerNative
     }
 
     boolean startHomeActivityLocked(int userId) {
-        if (mHeadless) {
-            // Added because none of the other calls to ensureBootCompleted seem to fire
-            // when running headless.
-            ensureBootCompleted();
-            return false;
-        }
-
         if (mFactoryTest == SystemServer.FACTORY_TEST_LOW_LEVEL
                 && mTopAction == null) {
             // We are running in factory test mode, but unable to find
@@ -5003,7 +4992,7 @@ public final class ActivityManagerService extends ActivityManagerNative
         // See if the top visible activity is waiting to run in this process...
         if (normalMode) {
             try {
-                if (mStackSupervisor.attachApplicationLocked(app, mHeadless)) {
+                if (mStackSupervisor.attachApplicationLocked(app)) {
                     didSomething = true;
                 }
             } catch (Exception e) {
@@ -9502,10 +9491,6 @@ public final class ActivityManagerService extends ActivityManagerNative
 
     private boolean handleAppCrashLocked(ProcessRecord app, String shortMsg, String longMsg,
             String stackTrace) {
-        if (mHeadless) {
-            Log.e(TAG, "handleAppCrashLocked: " + app.processName);
-            return false;
-        }
         long now = SystemClock.uptimeMillis();
 
         Long crashTime;
@@ -14049,9 +14034,6 @@ public final class ActivityManagerService extends ActivityManagerNative
      */
     boolean updateConfigurationLocked(Configuration values,
             ActivityRecord starting, boolean persistent, boolean initLocale) {
-        // do nothing if we are headless
-        if (mHeadless) return true;
-
         int changes = 0;
 
         if (values != null) {
diff --git a/services/java/com/android/server/am/ActivityStackSupervisor.java b/services/java/com/android/server/am/ActivityStackSupervisor.java
index 483b4a0..f4ca324 100644
--- a/services/java/com/android/server/am/ActivityStackSupervisor.java
+++ b/services/java/com/android/server/am/ActivityStackSupervisor.java
@@ -366,7 +366,7 @@ public final class ActivityStackSupervisor {
         return resumedActivity;
     }
 
-    boolean attachApplicationLocked(ProcessRecord app, boolean headless) throws Exception {
+    boolean attachApplicationLocked(ProcessRecord app) throws Exception {
         boolean didSomething = false;
         final String processName = app.processName;
         for (int stackNdx = mStacks.size() - 1; stackNdx >= 0; --stackNdx) {
@@ -379,10 +379,7 @@ public final class ActivityStackSupervisor {
                 if (hr.app == null && app.uid == hr.info.applicationInfo.uid
                         && processName.equals(hr.processName)) {
                     try {
-                        if (headless) {
-                            Slog.e(TAG, "Starting activities not supported on headless device: "
-                                    + hr);
-                        } else if (realStartActivityLocked(hr, app, true, true)) {
+                        if (realStartActivityLocked(hr, app, true, true)) {
                             didSomething = true;
                         }
                     } catch (Exception e) {
diff --git a/services/java/com/android/server/display/DisplayManagerService.java b/services/java/com/android/server/display/DisplayManagerService.java
index 02f26b3..85681c3 100644
--- a/services/java/com/android/server/display/DisplayManagerService.java
+++ b/services/java/com/android/server/display/DisplayManagerService.java
@@ -101,7 +101,6 @@ public final class DisplayManagerService extends IDisplayManager.Stub {
     // Otherwise WFD is enabled according to the value of config_enableWifiDisplay.
     private static final String FORCE_WIFI_DISPLAY_ENABLE = "persist.debug.wfd.enable";
 
-    private static final String SYSTEM_HEADLESS = "ro.config.headless";
     private static final long WAIT_FOR_DEFAULT_DISPLAY_TIMEOUT = 10000;
 
     private static final int MSG_REGISTER_DEFAULT_DISPLAY_ADAPTER = 1;
@@ -115,7 +114,6 @@ public final class DisplayManagerService extends IDisplayManager.Stub {
     private static final int DISPLAY_BLANK_STATE_UNBLANKED = 2;
 
     private final Context mContext;
-    private final boolean mHeadless;
     private final DisplayManagerHandler mHandler;
     private final Handler mUiHandler;
     private final DisplayAdapterListener mDisplayAdapterListener;
@@ -198,8 +196,6 @@ public final class DisplayManagerService extends IDisplayManager.Stub {
 
     public DisplayManagerService(Context context, Handler mainHandler) {
         mContext = context;
-        mHeadless = SystemProperties.get(SYSTEM_HEADLESS).equals("1");
-
         mHandler = new DisplayManagerHandler(mainHandler.getLooper());
         mUiHandler = UiThread.getHandler();
         mDisplayAdapterListener = new DisplayAdapterListener();
@@ -266,15 +262,6 @@ public final class DisplayManagerService extends IDisplayManager.Stub {
     }
 
     /**
-     * Returns true if the device is headless.
-     *
-     * @return True if the device is headless.
-     */
-    public boolean isHeadless() {
-        return mHeadless;
-    }
-
-    /**
      * Registers a display transaction listener to provide the client a chance to
      * update its surfaces within the same transaction as any display layout updates.
      *
@@ -723,13 +710,8 @@ public final class DisplayManagerService extends IDisplayManager.Stub {
     private void registerDefaultDisplayAdapter() {
         // Register default display adapter.
         synchronized (mSyncRoot) {
-            if (mHeadless) {
-                registerDisplayAdapterLocked(new HeadlessDisplayAdapter(
-                        mSyncRoot, mContext, mHandler, mDisplayAdapterListener));
-            } else {
-                registerDisplayAdapterLocked(new LocalDisplayAdapter(
-                        mSyncRoot, mContext, mHandler, mDisplayAdapterListener));
-            }
+            registerDisplayAdapterLocked(new LocalDisplayAdapter(
+                    mSyncRoot, mContext, mHandler, mDisplayAdapterListener));
         }
     }
 
@@ -1097,7 +1079,6 @@ public final class DisplayManagerService extends IDisplayManager.Stub {
         pw.println("DISPLAY MANAGER (dumpsys display)");
 
         synchronized (mSyncRoot) {
-            pw.println("  mHeadless=" + mHeadless);
             pw.println("  mOnlyCode=" + mOnlyCore);
             pw.println("  mSafeMode=" + mSafeMode);
             pw.println("  mPendingTraversal=" + mPendingTraversal);
diff --git a/services/java/com/android/server/display/HeadlessDisplayAdapter.java b/services/java/com/android/server/display/HeadlessDisplayAdapter.java
deleted file mode 100644
index 7a104d7..0000000
--- a/services/java/com/android/server/display/HeadlessDisplayAdapter.java
+++ /dev/null
@@ -1,73 +0,0 @@
-/*
- * Copyright (C) 2012 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package com.android.server.display;
-
-import android.content.Context;
-import android.os.Handler;
-import android.util.DisplayMetrics;
-import android.view.Display;
-
-/**
- * Provides a fake default display for headless systems.
- * <p>
- * Display adapters are guarded by the {@link DisplayManagerService.SyncRoot} lock.
- * </p>
- */
-final class HeadlessDisplayAdapter extends DisplayAdapter {
-    private static final String TAG = "HeadlessDisplayAdapter";
-
-    // Called with SyncRoot lock held.
-    public HeadlessDisplayAdapter(DisplayManagerService.SyncRoot syncRoot,
-            Context context, Handler handler, Listener listener) {
-        super(syncRoot, context, handler, listener, TAG);
-    }
-
-    @Override
-    public void registerLocked() {
-        super.registerLocked();
-        sendDisplayDeviceEventLocked(new HeadlessDisplayDevice(), DISPLAY_DEVICE_EVENT_ADDED);
-    }
-
-    private final class HeadlessDisplayDevice extends DisplayDevice {
-        private DisplayDeviceInfo mInfo;
-
-        public HeadlessDisplayDevice() {
-            super(HeadlessDisplayAdapter.this, null);
-        }
-
-        @Override
-        public DisplayDeviceInfo getDisplayDeviceInfoLocked() {
-            if (mInfo == null) {
-                mInfo = new DisplayDeviceInfo();
-                mInfo.name = getContext().getResources().getString(
-                        com.android.internal.R.string.display_manager_built_in_display_name);
-                mInfo.width = 640;
-                mInfo.height = 480;
-                mInfo.refreshRate = 60;
-                mInfo.densityDpi = DisplayMetrics.DENSITY_DEFAULT;
-                mInfo.xDpi = 160;
-                mInfo.yDpi = 160;
-                mInfo.flags = DisplayDeviceInfo.FLAG_DEFAULT_DISPLAY
-                        | DisplayDeviceInfo.FLAG_SECURE
-                        | DisplayDeviceInfo.FLAG_SUPPORTS_PROTECTED_BUFFERS;
-                mInfo.type = Display.TYPE_BUILT_IN;
-                mInfo.touch = DisplayDeviceInfo.TOUCH_NONE;
-            }
-            return mInfo;
-        }
-    }
-}
diff --git a/services/java/com/android/server/wm/WindowManagerService.java b/services/java/com/android/server/wm/WindowManagerService.java
index 865e72c..4feabf5 100644
--- a/services/java/com/android/server/wm/WindowManagerService.java
+++ b/services/java/com/android/server/wm/WindowManagerService.java
@@ -290,8 +290,6 @@ public class WindowManagerService extends IWindowManager.Stub
 
     final private KeyguardDisableHandler mKeyguardDisableHandler;
 
-    private final boolean mHeadless;
-
     final BroadcastReceiver mBroadcastReceiver = new BroadcastReceiver() {
         @Override
         public void onReceive(Context context, Intent intent) {
@@ -731,7 +729,6 @@ public class WindowManagerService extends IWindowManager.Stub
                 com.android.internal.R.bool.config_sf_limitedAlpha);
         mInputManager = inputManager; // Must be before createDisplayContentLocked.
         mDisplayManagerService = displayManager;
-        mHeadless = displayManager.isHeadless();
         mDisplaySettings = new DisplaySettings(context);
         mDisplaySettings.readSettingsLocked();
 
@@ -5249,7 +5246,7 @@ public class WindowManagerService extends IWindowManager.Stub
 
     public void performBootTimeout() {
         synchronized(mWindowMap) {
-            if (mDisplayEnabled || mHeadless) {
+            if (mDisplayEnabled) {
                 return;
             }
             Slog.w(TAG, "***** BOOT TIMEOUT: forcing display enabled");
@@ -5433,7 +5430,6 @@ public class WindowManagerService extends IWindowManager.Stub
     // only allow disables from pids which have count on, etc.
     @Override
     public void showStrictModeViolation(boolean on) {
-        if (mHeadless) return;
         int pid = Binder.getCallingPid();
         mH.sendMessage(mH.obtainMessage(H.SHOW_STRICT_MODE_VIOLATION, on ? 1 : 0, pid));
     }