Move all remaining appcache-related code to content namespace

content/renderer/renderer_webapplicationcachehost_impl.h

Index: content/renderer/renderer_webapplicationcachehost_impl.h
diff --git a/content/renderer/renderer_webapplicationcachehost_impl.h b/content/renderer/renderer_webapplicationcachehost_impl.h
index e7b2bc847fa98faca14389aa5411cc13cf73af06..a752c08672c56fc66d01b140e51d806b75171d06 100644
--- a/content/renderer/renderer_webapplicationcachehost_impl.h
+++ b/content/renderer/renderer_webapplicationcachehost_impl.h
@@ -15,13 +15,13 @@ class RendererWebApplicationCacheHostImpl : public WebApplicationCacheHostImpl {
   RendererWebApplicationCacheHostImpl(
       RenderViewImpl* render_view,
       blink::WebApplicationCacheHostClient* client,
-      appcache::AppCacheBackend* backend);
+      AppCacheBackend* backend);
 
   // WebApplicationCacheHostImpl:
-  virtual void OnLogMessage(appcache::AppCacheLogLevel log_level,
+  virtual void OnLogMessage(AppCacheLogLevel log_level,
                             const std::string& message) OVERRIDE;
   virtual void OnContentBlocked(const GURL& manifest_url) OVERRIDE;
-  virtual void OnCacheSelected(const appcache::AppCacheInfo& info) OVERRIDE;
+  virtual void OnCacheSelected(const AppCacheInfo& info) OVERRIDE;
 
  private:
   RenderViewImpl* GetRenderView();