DevTools: control touch emulation from the browser side only.

content/browser/renderer_host/render_widget_host_impl.h

Index: content/browser/renderer_host/render_widget_host_impl.h
diff --git a/content/browser/renderer_host/render_widget_host_impl.h b/content/browser/renderer_host/render_widget_host_impl.h
index 80f05962c149e65066cb7118baa85b1d92260568..a8ec18a148ca7fa3ac4a8994ef085d8e1525fa25 100644
--- a/content/browser/renderer_host/render_widget_host_impl.h
+++ b/content/browser/renderer_host/render_widget_host_impl.h
@@ -276,7 +276,7 @@ class CONTENT_EXPORT RenderWidgetHostImpl
       const ui::LatencyInfo& ui_latency);
 
   // Enables/disables touch emulation using mouse event. See TouchEmulator.
-  void SetTouchEventEmulationEnabled(bool enabled, bool allow_pinch);
+  void SetTouchEventEmulationEnabled(bool enabled);
 
   // TouchEmulatorClient implementation.
   virtual void ForwardGestureEvent(
@@ -599,7 +599,6 @@ class CONTENT_EXPORT RenderWidgetHostImpl
   virtual void OnFocus();
   virtual void OnBlur();
   void OnSetCursor(const WebCursor& cursor);
-  void OnSetTouchEventEmulationEnabled(bool enabled, bool allow_pinch);
   void OnTextInputStateChanged(
       const ViewHostMsg_TextInputState_Params& params);