Handle Ctrl+Mousewheel after renderer

content/browser/renderer_host/render_widget_host_delegate.h

Index: content/browser/renderer_host/render_widget_host_delegate.h
diff --git a/content/browser/renderer_host/render_widget_host_delegate.h b/content/browser/renderer_host/render_widget_host_delegate.h
index aac41d84a8422bb9307b33150abe74540a257295..db24b0bbb9dff43d9d445dc055821a523ad247c0 100644
--- a/content/browser/renderer_host/render_widget_host_delegate.h
+++ b/content/browser/renderer_host/render_widget_host_delegate.h
@@ -42,10 +42,11 @@ class CONTENT_EXPORT RenderWidgetHostDelegate {
   // event (used for keyboard shortcuts).
   virtual void HandleKeyboardEvent(const NativeWebKeyboardEvent& event) {}
 
-  // Callback to give the browser a chance to handle the specified mouse wheel
-  // event before sending it to the renderer.
+  // Callback to inform the browser that the renderer did not process the
+  // specified mouse wheel event. This gives an opportunity to the browser to
+  // process the event (used for zoom shortcuts).
   // Returns true if the |event| was handled.
-  virtual bool PreHandleWheelEvent(const blink::WebMouseWheelEvent& event);
+  virtual bool HandleWheelEvent(const blink::WebMouseWheelEvent& event);
 
   // Callback to give the browser a chance to handle the specified gesture
   // event before sending it to the renderer.