Route touch-events for WebViewGuest directly to guest renderer.

content/browser/renderer_host/render_widget_host_view_aura.h

Index: content/browser/renderer_host/render_widget_host_view_aura.h
diff --git a/content/browser/renderer_host/render_widget_host_view_aura.h b/content/browser/renderer_host/render_widget_host_view_aura.h
index b72736c07429f20a154a389f0ed6e3134a73f6f0..f06e9a7a55b068beddbe7a4c466b9c4d4f55f144 100644
--- a/content/browser/renderer_host/render_widget_host_view_aura.h
+++ b/content/browser/renderer_host/render_widget_host_view_aura.h
@@ -192,6 +192,8 @@ class CONTENT_EXPORT RenderWidgetHostViewAura
                                      gfx::Point* transformed_point) override;
   void ProcessMouseEvent(const blink::WebMouseEvent& event) override;
   void ProcessMouseWheelEvent(const blink::WebMouseWheelEvent& event) override;
+  void ProcessTouchEvent(const blink::WebTouchEvent& event,
+                         const ui::LatencyInfo& latency) override;
   void TransformPointToLocalCoordSpace(const gfx::Point& point,
                                        cc::SurfaceId original_surface,
                                        gfx::Point* transformed_point) override;
@@ -483,6 +485,9 @@ class CONTENT_EXPORT RenderWidgetHostViewAura
                               bool mouse_locked,
                               bool selection_popup);
 
+  // Returns true when we can do SurfaceHitTesting for the event type.
+  bool ShouldRouteEvent(const ui::Event* event) const;
+
   // Called when the parent window bounds change.
   void HandleParentBoundsChanged();