Allow disabling input throttle through RendererPreference (for Browser Plugin guests)

content/renderer/render_widget.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CONTENT_RENDERER_RENDER_WIDGET_H_
 #define CONTENT_RENDERER_RENDER_WIDGET_H_
 
 #include <deque>
 #include <vector>
 
@@ skipping 167 matching lines @@
   friend class content::RenderWidgetTest;
 
   enum ResizeAck {
     SEND_RESIZE_ACK,
     NO_RESIZE_ACK,
   };
 
   RenderWidget(WebKit::WebPopupType popup_type,
                const WebKit::WebScreenInfo& screen_info,
                bool swapped_out);
+
   virtual ~RenderWidget();
 
   // Initializes this view with the given opener.  CompleteInit must be called
   // later.
   void Init(int32 opener_id);
 
   // Called by Init and subclasses to perform initialization.
   void DoInit(int32 opener_id,
               WebKit::WebWidget* web_widget,
               IPC::SyncMessage* create_widget_message);
@@ skipping 122 matching lines @@
 
   void WillToggleFullscreen();
   void DidToggleFullscreen();
 
   bool next_paint_is_resize_ack() const;
   bool next_paint_is_restore_ack() const;
   void set_next_paint_is_resize_ack();
   void set_next_paint_is_restore_ack();
   void set_next_paint_is_repaint_ack();
 
+  void set_throttle_input_events(bool throttle_input_events) {
+    throttle_input_events_ = throttle_input_events;
+  }
+
   // Checks if the text input state and compose inline mode have been changed.
   // If they are changed, the new value will be sent to the browser process.
   void UpdateTextInputState();
 
   // Checks if the selection bounds have been changed. If they are changed,
   // the new value will be sent to the browser process.
   virtual void UpdateSelectionBounds();
 
   // Checks if the composition range or composition character bounds have been
   // changed. If they are changed, the new value will be sent to the browser
@@ skipping 223 matching lines @@
   // case NULL is added to the queue.
   std::deque<ViewHostMsg_UpdateRect*> updates_pending_swap_;
 
   // Properties of the screen hosting this RenderWidget instance.
   WebKit::WebScreenInfo screen_info_;
 
   // The device scale factor. This value is computed from the DPI entries in
   // |screen_info_| on some platforms, and defaults to 1 on other platforms.
   float device_scale_factor_;
 
+  // Specifies whether input event throttling is enabled for this widget.
+  bool throttle_input_events_;
+
   DISALLOW_COPY_AND_ASSIGN(RenderWidget);
 };
 
 #endif  // CONTENT_RENDERER_RENDER_WIDGET_H_