Route touch-events for WebViewGuest directly to guest renderer.

content/browser/renderer_host/render_widget_host_input_event_router.h

Index: content/browser/renderer_host/render_widget_host_input_event_router.h
diff --git a/content/browser/renderer_host/render_widget_host_input_event_router.h b/content/browser/renderer_host/render_widget_host_input_event_router.h
index 3a2a967330a9a4a6188444cd3529364ddceb467d..cac82991d448d9e91ebd86d1341d34fe5b43add6 100644
--- a/content/browser/renderer_host/render_widget_host_input_event_router.h
+++ b/content/browser/renderer_host/render_widget_host_input_event_router.h
@@ -13,12 +13,17 @@
 namespace blink {
 class WebMouseEvent;
 class WebMouseWheelEvent;
+class WebTouchEvent;
 }
 
 namespace gfx {
 class Point;
 }
 
+namespace ui {
+class LatencyInfo;
+}
+
 namespace content {
 
 class RenderWidgetHostViewBase;
@@ -38,6 +43,9 @@ class CONTENT_EXPORT RenderWidgetHostInputEventRouter {
                        blink::WebMouseEvent* event);
   void RouteMouseWheelEvent(RenderWidgetHostViewBase* root_view,
                             blink::WebMouseWheelEvent* event);
+  void RouteTouchEvent(RenderWidgetHostViewBase* root_view,
+                       blink::WebTouchEvent *event,
+                       const ui::LatencyInfo& latency);
 
   void AddSurfaceIdNamespaceOwner(uint32_t id, RenderWidgetHostViewBase* owner);
   void RemoveSurfaceIdNamespaceOwner(uint32_t id);
@@ -50,6 +58,8 @@ class CONTENT_EXPORT RenderWidgetHostInputEventRouter {
   typedef base::hash_map<uint32_t, RenderWidgetHostViewBase*>
       SurfaceIdNamespaceOwnerMap;
   SurfaceIdNamespaceOwnerMap owner_map_;
+  RenderWidgetHostViewBase* current_touch_target_;
+  int active_touches_;
 
   DISALLOW_COPY_AND_ASSIGN(RenderWidgetHostInputEventRouter);
 };