[Android WebView] API to enable fullscreen.

android_webview/java/src/org/chromium/android_webview/AwSettings.java

Index: android_webview/java/src/org/chromium/android_webview/AwSettings.java
diff --git a/android_webview/java/src/org/chromium/android_webview/AwSettings.java b/android_webview/java/src/org/chromium/android_webview/AwSettings.java
index 73ac54ab7c02cec0ebdf542e9c6ee6891bf09000..c8d6d9f8b22e576aa9619b5c3bd7b31a65d7441d 100644
--- a/android_webview/java/src/org/chromium/android_webview/AwSettings.java
+++ b/android_webview/java/src/org/chromium/android_webview/AwSettings.java
@@ -111,6 +111,7 @@ public class AwSettings {
     private boolean mShouldFocusFirstNode = true;
     private boolean mGeolocationEnabled = true;
     private boolean mAutoCompleteEnabled = true;
+    private boolean mFullscreenSupported = false;
     private boolean mSupportZoom = true;
     private boolean mBuiltInZoomControls = false;
     private boolean mDisplayZoomControls = true;
@@ -461,6 +462,21 @@ public class AwSettings {
         return mEnableSupportedHardwareAcceleratedFeatures;
     }
 
+    void setFullscreenSupported(boolean supported) {
+        synchronized (mAwSettingsLock) {
+            if (mFullscreenSupported != supported) {
+                mFullscreenSupported = supported;
+                mEventHandler.updateWebkitPreferencesLocked();
+            }
+        }
+    }
+
+    @CalledByNative
+    private boolean getFullscreenSupportedLocked() {
+        assert Thread.holdsLock(mAwSettingsLock);
+        return mFullscreenSupported;
+    }
+
     /**
      * See {@link android.webkit.WebSettings#setNeedInitialFocus}.
      */