Cleanup for bug 5278763

Variable is not needed, and removing unneeded check

Also throwing an exception if sContext gets set to null.

Change-Id: Ic61ba4c88a162eb730e166f0e9f477e809b51f42

3 files changed, 15 insertions, 9 deletions

diff --git a/core/java/android/webkit/CookieSyncManager.java b/core/java/android/webkit/CookieSyncManager.java
index 313f755..a699800 100644
--- a/core/java/android/webkit/CookieSyncManager.java
+++ b/core/java/android/webkit/CookieSyncManager.java
@@ -88,6 +88,10 @@ public final class CookieSyncManager extends WebSyncManager {
      */
     public static synchronized CookieSyncManager createInstance(
             Context context) {
+        if (context == null) {
+            throw new IllegalArgumentException("Invalid context argument");
+        }
+
         JniUtil.setContext(context);
         Context appContext = context.getApplicationContext();
         if (sRef == null) {
diff --git a/core/java/android/webkit/JniUtil.java b/core/java/android/webkit/JniUtil.java
index ef1641d..7759ff3 100644
--- a/core/java/android/webkit/JniUtil.java
+++ b/core/java/android/webkit/JniUtil.java
@@ -39,25 +39,21 @@ class JniUtil {
     private static Boolean sUseChromiumHttpStack;
     private static Context sContext;
 
-    private static boolean initialized = false;
-
     private static void checkInitialized() {
-        if (!initialized) {
+        if (sContext == null) {
             throw new IllegalStateException("Call CookieSyncManager::createInstance() or create a webview before using this class");
         }
     }
 
     protected static synchronized void setContext(Context context) {
-        if (initialized)
+        if (sContext != null) {
             return;
+        }
 
         sContext = context.getApplicationContext();
-        initialized = true;
     }
 
     protected static synchronized Context getContext() {
-        if (!initialized)
-            return null;
         return sContext;
     }
 
@@ -68,8 +64,9 @@ class JniUtil {
     private static synchronized String getDatabaseDirectory() {
         checkInitialized();
 
-        if (sDatabaseDirectory == null)
+        if (sDatabaseDirectory == null) {
             sDatabaseDirectory = sContext.getDatabasePath("dummy").getParent();
+        }
 
         return sDatabaseDirectory;
     }
@@ -81,8 +78,9 @@ class JniUtil {
     private static synchronized String getCacheDirectory() {
         checkInitialized();
 
-        if (sCacheDirectory == null)
+        if (sCacheDirectory == null) {
             sCacheDirectory = sContext.getCacheDir().getAbsolutePath();
+        }
 
         return sCacheDirectory;
     }
diff --git a/core/java/android/webkit/WebView.java b/core/java/android/webkit/WebView.java
index 47abbc2..ca5d950 100644
--- a/core/java/android/webkit/WebView.java
+++ b/core/java/android/webkit/WebView.java
@@ -1050,6 +1050,10 @@ public class WebView extends AbsoluteLayout
         super(context, attrs, defStyle);
         checkThread();
 
+        if (context == null) {
+            throw new IllegalArgumentException("Invalid context argument");
+        }
+
         // Used by the chrome stack to find application paths
         JniUtil.setContext(context);