<webview>: Implement WebRequest API

chrome/browser/chrome_content_browser_client.h

Index: chrome/browser/chrome_content_browser_client.h
diff --git a/chrome/browser/chrome_content_browser_client.h b/chrome/browser/chrome_content_browser_client.h
index 9f2ecc61def948f532bde63ee92fbf92da68c369..e059d07498573e4f10e79cd4c1f8847137251c2d 100644
--- a/chrome/browser/chrome_content_browser_client.h
+++ b/chrome/browser/chrome_content_browser_client.h
@@ -62,6 +62,9 @@ class ChromeContentBrowserClient : public content::ContentBrowserClient {
   virtual void GuestWebContentsCreated(
       content::WebContents* guest_web_contents,
       content::WebContents* embedder_web_contents) OVERRIDE;
+  virtual void GuestWebContentsDestroyed(
+      content::WebContents* guest_web_contents,
+      content::WebContents* embedder_web_contents) OVERRIDE;
   virtual void RenderProcessHostCreated(
       content::RenderProcessHost* host) OVERRIDE;
   virtual bool ShouldUseProcessPerSite(content::BrowserContext* browser_context,
@@ -234,6 +237,11 @@ class ChromeContentBrowserClient : public content::ContentBrowserClient {
   // Sets io_thread_application_locale_ to the given value.
   void SetApplicationLocaleOnIOThread(const std::string& locale);
 
+  void RemoveWebViewEventListenersOnIOThread(void* profile,
+                                             const std::string& extension_id,
+                                             int embedder_process_id,
+                                             int embedder_routing_id,
+                                             int web_view_instance_id);
   // Set of origins that can use TCP/UDP private APIs from NaCl.
   std::set<std::string> allowed_socket_origins_;