Move RequestPpapiBrokerPermission from WebContentsObserver to WebContentsDelegate.

chrome/browser/ui/views/external_tab_container_win.h

Index: chrome/browser/ui/views/external_tab_container_win.h
diff --git a/chrome/browser/ui/views/external_tab_container_win.h b/chrome/browser/ui/views/external_tab_container_win.h
index 42868d1743c3af2f1cf99b353ad41439a16a9ef0..9b9a8e16f9820442b28f36dd25ebd7e2cb8b4608 100644
--- a/chrome/browser/ui/views/external_tab_container_win.h
+++ b/chrome/browser/ui/views/external_tab_container_win.h
@@ -179,6 +179,11 @@ class ExternalTabContainerWin : public ExternalTabContainer,
       content::WebContents* web_contents,
       const content::MediaStreamRequest* request,
       const content::MediaResponseCallback& callback) OVERRIDE;
+  virtual bool RequestPpapiBrokerPermission(
+      content::WebContents* web_contents,
+      const GURL& url,
+      const FilePath& plugin_path,
+      const base::Callback<void(bool)>& callback) OVERRIDE;
 
   void RegisterRenderViewHost(content::RenderViewHost* render_view_host);
   void UnregisterRenderViewHost(content::RenderViewHost* render_view_host);