Move has_focus_ tracking from RenderWidget to RenderView.

content/renderer/render_view_impl.h

Index: content/renderer/render_view_impl.h
diff --git a/content/renderer/render_view_impl.h b/content/renderer/render_view_impl.h
index 805dc0742634039f9ff6b68e7eadc99603a88546..2586931bf562a7b643123a58a6530392d7bc2e58 100644
--- a/content/renderer/render_view_impl.h
+++ b/content/renderer/render_view_impl.h
@@ -232,6 +232,9 @@ class CONTENT_EXPORT RenderViewImpl
   // as that is only for changes that aren't initiated by the client.
   void SetZoomLevel(double zoom_level);
 
+  // Indicates whether this page has been focused by the browser.
+  bool has_focus() const { return has_focus_; }
+
   // Plugin-related functions --------------------------------------------------
 
 #if defined(ENABLE_PLUGINS)
@@ -873,6 +876,9 @@ class CONTENT_EXPORT RenderViewImpl
   TopControlsState top_controls_constraints_;
 #endif
 
+  // Indicates whether this page has been focused/unfocused by the browser.
+  bool has_focus_;
+
   // View ----------------------------------------------------------------------
 
   // Cache the preferred size of the page in order to prevent sending the IPC