Implement support for Mac Zoom following focus and caret

content/browser/renderer_host/render_widget_host_view_base.h

Index: content/browser/renderer_host/render_widget_host_view_base.h
diff --git a/content/browser/renderer_host/render_widget_host_view_base.h b/content/browser/renderer_host/render_widget_host_view_base.h
index 0aeb951de2fdfc926cbfee32d6453542eb9824c9..8245d15fd508424422778badbbd8222104897304 100644
--- a/content/browser/renderer_host/render_widget_host_view_base.h
+++ b/content/browser/renderer_host/render_widget_host_view_base.h
@@ -204,7 +204,8 @@ class CONTENT_EXPORT RenderWidgetHostViewBase : public RenderWidgetHostView,
   virtual gfx::NativeViewAccessible AccessibilityGetNativeViewAccessible();
 
   // Informs that the focused DOM node has changed.
-  virtual void FocusedNodeChanged(bool is_editable_node) {}
+  virtual void FocusedNodeChanged(bool is_editable_node,
+                                  const gfx::Rect& node_bounds_in_screen) {}
 
   virtual void OnSwapCompositorFrame(uint32_t compositor_frame_sink_id,
                                      cc::CompositorFrame frame) {}