[Android] Expose method for UI to force composites

content/public/android/java/src/org/chromium/content/browser/ContentViewRenderView.java

Index: content/public/android/java/src/org/chromium/content/browser/ContentViewRenderView.java
diff --git a/content/public/android/java/src/org/chromium/content/browser/ContentViewRenderView.java b/content/public/android/java/src/org/chromium/content/browser/ContentViewRenderView.java
index 97949f36abf62a6c78666b22d6058a7ece1f929d..238e7e6b05cb159fc4703593f7b854b2d8e6f70d 100644
--- a/content/public/android/java/src/org/chromium/content/browser/ContentViewRenderView.java
+++ b/content/public/android/java/src/org/chromium/content/browser/ContentViewRenderView.java
@@ -148,6 +148,14 @@ public class ContentViewRenderView extends FrameLayout {
     }
 
     /**
+     * This method should only be called if something in the UI requires a redraw of the compositor.

[Ted C, 2014/08/23 00:47:11]

Hmm...I would phrase this more as:

"Trigger a redraw of the compositor.  <Warning that it is only needed if the UI
changes something that will not trigger the redraw itself>."

[David Trainor- moved to gerrit, 2014/08/25 17:30:05]

Done.

+     */
+    public void setNeedsComposite() {
+        if (mNativeContentViewRenderView == 0) return;
+        nativeSetNeedsComposite(mNativeContentViewRenderView);
+    }
+
+    /**
      * This method should be subclassed to provide actions to be performed once the view is ready to
      * render.
      */
@@ -216,4 +224,5 @@ public class ContentViewRenderView extends FrameLayout {
             int format, int width, int height, Surface surface);
     private native void nativeSetOverlayVideoMode(long nativeContentViewRenderView,
             boolean enabled);
+    private native void nativeSetNeedsComposite(long nativeContentViewRenderView);
 }