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 166 matching lines @@
   // For unit tests.
   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);
+               bool swapped_out,
+               bool disable_input_throttle);
+
   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 365 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_;
 
+  // Disables throttling of input based on ViewMsg_UpdateRect_ACKs.
+  bool disable_input_throttle_;

[darin (slow to review), 2012/08/07 21:54:39]

nit: it is probably better to negate this variable so it can be named
"throttle_input_events_".  the place where the variable gets used would then not
need to be negated.

[Fady Samuel, 2012/08/07 22:17:22]

Done.

+
   DISALLOW_COPY_AND_ASSIGN(RenderWidget);
 };
 
 #endif  // CONTENT_RENDERER_RENDER_WIDGET_H_