Not use ProfileCompare when removing profile.

chrome/browser/extensions/api/input_ime/input_ime_api.h

 // Copyright (c) 2012 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_API_INPUT_IME_INPUT_IME_API_H_
 #define CHROME_BROWSER_EXTENSIONS_API_INPUT_IME_INPUT_IME_API_H_
 
-#include <map>
 #include <string>
+#include <unordered_map>
 #include <vector>
 
 #include "base/macros.h"
 #include "base/memory/singleton.h"
 #include "base/scoped_observer.h"
 #include "base/values.h"
 #include "build/build_config.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/ui/input_method/input_method_engine_base.h"
 #include "components/keyed_service/core/keyed_service.h"
@@ skipping 90 matching lines @@
  public:
   static InputImeEventRouterFactory* GetInstance();
   InputImeEventRouter* GetRouter(Profile* profile);
   void RemoveProfile(Profile* profile);
 
  private:
   friend struct base::DefaultSingletonTraits<InputImeEventRouterFactory>;
   InputImeEventRouterFactory();
   ~InputImeEventRouterFactory();
 
-  std::map<Profile*, InputImeEventRouter*, ProfileCompare> router_map_;
+  std::unordered_map<Profile*, InputImeEventRouter*> router_map_;

[Shu Chen, 2016/04/19 07:27:17]

why using unordered_map?

[Azure Wei, 2016/04/19 08:15:15]

We don't need to sort the profile, so std::unordered_map seems more efficient
and convenient here.  

 
   DISALLOW_COPY_AND_ASSIGN(InputImeEventRouterFactory);
 };
 
 class InputImeKeyEventHandledFunction : public UIThreadExtensionFunction {
  public:
   DECLARE_EXTENSION_FUNCTION("input.ime.keyEventHandled",
                              INPUT_IME_KEYEVENTHANDLED)
 
  protected:
@@ skipping 80 matching lines @@
       extension_registry_observer_;
 
   content::NotificationRegistrar registrar_;
 };
 
 InputImeEventRouter* GetInputImeEventRouter(Profile* profile);
 
 }  // namespace extensions
 
 #endif  // CHROME_BROWSER_EXTENSIONS_API_INPUT_IME_INPUT_IME_API_H_