[Android] Show autofill popup after animation.

cc/trees/layer_tree_host.h

Index: cc/trees/layer_tree_host.h
diff --git a/cc/trees/layer_tree_host.h b/cc/trees/layer_tree_host.h
index e60f96eb423a23eedb726311378c1b29ac99c919..7aee2f01b5e7047a5e67a7eaf5e98239687ecc69 100644
--- a/cc/trees/layer_tree_host.h
+++ b/cc/trees/layer_tree_host.h
@@ -136,6 +136,9 @@ class CC_EXPORT LayerTreeHost {
   void DeleteContentsTexturesOnImplThread(ResourceProvider* resource_provider);
   bool UpdateLayers(ResourceUpdateQueue* queue);
 
+  // Called when the compositor completed page scale animation.
+  void DidCompletePageScaleAnimation();
+
   LayerTreeHostClient* client() { return client_; }
   const base::WeakPtr<InputHandler>& GetInputHandler() {
     return input_handler_weak_ptr_;
@@ -448,6 +451,10 @@ class CC_EXPORT LayerTreeHost {
 
   scoped_ptr<PendingPageScaleAnimation> pending_page_scale_animation_;
 
+  // If set, then page scale animation has completed, but the client hasn't been
+  // notified about it yet.
+  bool did_complete_scale_animation_;
+
   bool in_paint_layer_contents_;
 
   static const int kTotalFramesToUseForLCDTextMetrics = 50;