Changes to content/ to facilitate new zoom extension API

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 b11af11c6621c6d0a0e3c06f71208cd6c436a68c..9f2acd8fd51c848cbc95e5301befc43495929ff9 100644
--- a/content/renderer/render_view_impl.h
+++ b/content/renderer/render_view_impl.h
@@ -492,6 +492,7 @@ class CONTENT_EXPORT RenderViewImpl
   virtual blink::WebSpeechRecognizer* speechRecognizer();
   virtual void zoomLimitsChanged(double minimum_level, double maximum_level);
   virtual void zoomLevelChanged();
+  virtual void zoomLevelChanged(int zoom_id, double zoom_level, bool remember);

[jam, 2014/04/10 21:45:45]

this is not a WebViewClient method, so move it out of this section and no need
for virtual.

put it in the private section, and call it something like ChangeZoomLevel(...)

   virtual double zoomLevelToZoomFactor(double zoom_level) const;
   virtual double zoomFactorToZoomLevel(double factor) const;
   virtual void registerProtocolHandler(const blink::WebString& scheme,
@@ -906,7 +907,8 @@ class CONTENT_EXPORT RenderViewImpl
   void OnSetPageEncoding(const std::string& encoding_name);
   void OnSetRendererPrefs(const RendererPreferences& renderer_prefs);
   void OnSetWebUIProperty(const std::string& name, const std::string& value);
-  void OnSetZoomLevel(double zoom_level);
+  void OnSetZoomLevel(int zoom_id, double zoom_level,
+                      content::ZoomMode zoom_mode);

[jam, 2014/04/10 21:45:45]

nit: no content:: needed inside content namespace. this comment applies here and
in all the other files in content

   void OnSetZoomLevelForLoadingURL(const GURL& url, double zoom_level);
   void OnStop();
   void OnStopFinding(StopFindAction action);