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

content/renderer/render_widget.h

Index: content/renderer/render_widget.h
diff --git a/content/renderer/render_widget.h b/content/renderer/render_widget.h
index 4a705db393c135f50930291efc19e0d06a9a4046..28a31449e517dae39a790a5d57219311c6b810f9 100644
--- a/content/renderer/render_widget.h
+++ b/content/renderer/render_widget.h
@@ -184,7 +184,9 @@ class CONTENT_EXPORT RenderWidget
 
   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
@@ -570,6 +572,9 @@ class CONTENT_EXPORT RenderWidget
   // |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);
 };