Added tracking of time spent waiting on extensions to the webRequest API.

chrome/browser/extensions/extension_webrequest_api.h

 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CHROME_BROWSER_EXTENSIONS_EXTENSION_WEBREQUEST_API_H_
 #define CHROME_BROWSER_EXTENSIONS_EXTENSION_WEBREQUEST_API_H_
 #pragma once
 
 #include <map>
 #include <set>
 #include <string>
 #include <vector>
 
 #include "base/memory/singleton.h"
 #include "base/time.h"
 #include "chrome/browser/extensions/extension_function.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/common/extensions/url_pattern_set.h"
 #include "ipc/ipc_message.h"
 #include "net/base/completion_callback.h"
 #include "net/http/http_request_headers.h"
 #include "webkit/glue/resource_type.h"
 
 class ExtensionInfoMap;
+class ExtensionWebRequestTimeTracker;
 class GURL;
 
 namespace base {
 class DictionaryValue;
 class ListValue;
 class StringValue;
 }
 
 namespace net {
 class AuthChallengeInfo;
@@ skipping 259 matching lines @@
       std::vector<const ExtensionWebRequestEventRouter::EventListener*>*
           matching_listeners);
 
   // Decrements the count of event handlers blocking the given request. When the
   // count reaches 0, we stop blocking the request and proceed it using the
   // method requested by the extension with the highest precedence. Precedence
   // is decided by extension install time. If |response| is non-NULL, this
   // method assumes ownership.
   void DecrementBlockCount(
       void* profile,
+      const std::string& extension_id,
       const std::string& event_name,
       uint64 request_id,
       EventResponse* response);
 
   // Sets the flag that |event_type| has been signaled for |request_id|.
   // Returns the value of the flag before setting it.
   bool GetAndSetSignaled(uint64 request_id, EventTypes event_type);
 
   // Clears the flag that |event_type| has been signaled for |request_id|.
   void ClearSignaled(uint64 request_id, EventTypes event_type);
@@ skipping 28 matching lines @@
   BlockedRequestMap blocked_requests_;
 
   // A map of request ids to a bitvector indicating which events have been
   // signaled and should not be sent again.
   SignaledRequestMap signaled_requests_;
 
   // A map of original profile -> corresponding incognito profile (and vice
   // versa).
   CrossProfileMap cross_profile_map_;
 
+  // Keeps track of time spent waiting on extensions using the blocking
+  // webRequest API.
+  scoped_ptr<ExtensionWebRequestTimeTracker> request_time_tracker_;
+
   DISALLOW_COPY_AND_ASSIGN(ExtensionWebRequestEventRouter);
 };
 
 class WebRequestAddEventListener : public SyncIOThreadExtensionFunction {
  public:
   virtual bool RunImpl();
   DECLARE_EXTENSION_FUNCTION_NAME("experimental.webRequest.addEventListener");
 };
 
 class WebRequestEventHandled : public SyncIOThreadExtensionFunction {
  public:
   virtual bool RunImpl();
   DECLARE_EXTENSION_FUNCTION_NAME("experimental.webRequest.eventHandled");
 };
 
 #endif  // CHROME_BROWSER_EXTENSIONS_EXTENSION_WEBREQUEST_API_H_