[Android] Show autofill popup after animation.

content/public/renderer/render_view_observer.h

Index: content/public/renderer/render_view_observer.h
diff --git a/content/public/renderer/render_view_observer.h b/content/public/renderer/render_view_observer.h
index 0100324edced9210f28d5f09e00972b3a6e19714..40165cbf9f85a61d3ab18382ef1ac3d5427c7f71 100644
--- a/content/public/renderer/render_view_observer.h
+++ b/content/public/renderer/render_view_observer.h
@@ -85,6 +85,7 @@ class CONTENT_EXPORT RenderViewObserver : public IPC::Listener,
   virtual void DraggableRegionsChanged(blink::WebFrame* frame) {}
   virtual void DidCommitCompositorFrame() {}
   virtual void DidUpdateLayout() {}
+  virtual void WillAnimatePageScale(bool will_animate) {}
 
   // These match the RenderView methods.
   virtual void DidHandleMouseEvent(const blink::WebMouseEvent& event) {}
@@ -97,6 +98,9 @@ class CONTENT_EXPORT RenderViewObserver : public IPC::Listener,
   virtual void OrientationChangeEvent() {}
   virtual void Resized() {}
 
+  // These match compositor events.
+  virtual void DidCompletePageScaleAnimation() {}
+
   virtual void OnStop() {}
 
   // IPC::Listener implementation.