wm: call displayReady for all built in displays when system is ready.

When system has more than one built in display, displayReady needs
to be called for all built in displays when window manager is ready.
Otherwise, some system services, such as presentation, mediarouter,
etc, won't work on these displays.

Bug: 24103683
Change-Id: Ibf08074eff555c14a318236bd06e7b4855503140

1 files changed, 6 insertions, 3 deletions

diff --git a/services/core/java/com/android/server/wm/WindowManagerService.java b/services/core/java/com/android/server/wm/WindowManagerService.java
index e903e4f..71bbdb6 100644
--- a/services/core/java/com/android/server/wm/WindowManagerService.java
+++ b/services/core/java/com/android/server/wm/WindowManagerService.java
@@ -642,6 +642,7 @@ public class WindowManagerService extends IWindowManager.Stub
     final InputManagerService mInputManager;
     final DisplayManagerInternal mDisplayManagerInternal;
     final DisplayManager mDisplayManager;
+    final Display[] mDisplays;
 
     // Who is holding the screen on.
     Session mHoldingScreenOn;
@@ -915,8 +916,8 @@ public class WindowManagerService extends IWindowManager.Stub
 
         mFxSession = new SurfaceSession();
         mDisplayManager = (DisplayManager)context.getSystemService(Context.DISPLAY_SERVICE);
-        Display[] displays = mDisplayManager.getDisplays();
-        for (Display display : displays) {
+        mDisplays = mDisplayManager.getDisplays();
+        for (Display display : mDisplays) {
             createDisplayContentLocked(display);
         }
 
@@ -7641,7 +7642,9 @@ public class WindowManagerService extends IWindowManager.Stub
     }
 
     public void displayReady() {
-        displayReady(Display.DEFAULT_DISPLAY);
+        for (Display display : mDisplays) {
+            displayReady(display.getDisplayId());
+        }
 
         synchronized(mWindowMap) {
             final DisplayContent displayContent = getDefaultDisplayContentLocked();