[Easy signin] Wire up userClick auth attempt to easy unlock app and back

chrome/browser/extensions/api/screenlock_private/screenlock_private_api.h

 // Copyright 2013 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_SCREENLOCK_PRIVATE_SCREENLOCK_PRIVATE_API_H_
 #define CHROME_BROWSER_EXTENSIONS_API_SCREENLOCK_PRIVATE_SCREENLOCK_PRIVATE_API_H_
 
 #include <string>
 
 #include "chrome/browser/extensions/chrome_extension_function.h"
@@ skipping 20 matching lines @@
                              SCREENLOCKPRIVATE_SETLOCKED)
   ScreenlockPrivateSetLockedFunction();
   virtual bool RunAsync() OVERRIDE;
 
  private:
   virtual ~ScreenlockPrivateSetLockedFunction();
   DISALLOW_COPY_AND_ASSIGN(ScreenlockPrivateSetLockedFunction);
 };
 
 class ScreenlockPrivateAcceptAuthAttemptFunction
-    : public ChromeAsyncExtensionFunction {
+    : public ChromeSyncExtensionFunction {
  public:
   DECLARE_EXTENSION_FUNCTION("screenlockPrivate.acceptAuthAttempt",
                              SCREENLOCKPRIVATE_ACCEPTAUTHATTEMPT)
   ScreenlockPrivateAcceptAuthAttemptFunction();
-  virtual bool RunAsync() OVERRIDE;
+  virtual bool RunSync() OVERRIDE;
 
  private:
   virtual ~ScreenlockPrivateAcceptAuthAttemptFunction();
   DISALLOW_COPY_AND_ASSIGN(ScreenlockPrivateAcceptAuthAttemptFunction);
 };
 
 class ScreenlockPrivateEventRouter : public extensions::BrowserContextKeyedAPI,
                                      public ScreenlockBridge::Observer {
  public:
   explicit ScreenlockPrivateEventRouter(content::BrowserContext* context);
   virtual ~ScreenlockPrivateEventRouter();
 
-  void OnAuthAttempted(ScreenlockBridge::LockHandler::AuthType auth_type,
+  bool OnAuthAttempted(ScreenlockBridge::LockHandler::AuthType auth_type,
                        const std::string& value);
 
   // BrowserContextKeyedAPI
   static extensions::BrowserContextKeyedAPIFactory<
       ScreenlockPrivateEventRouter>*
       GetFactoryInstance();
   virtual void Shutdown() OVERRIDE;
 
   // ScreenlockBridge::Observer
   virtual void OnScreenDidLock() OVERRIDE;
@@ skipping 13 matching lines @@
 
   void DispatchEvent(const std::string& event_name, base::Value* arg);
 
   content::BrowserContext* browser_context_;
   DISALLOW_COPY_AND_ASSIGN(ScreenlockPrivateEventRouter);
 };
 
 }  // namespace extensions
 
 #endif  // CHROME_BROWSER_EXTENSIONS_API_SCREENLOCK_PRIVATE_SCREENLOCK_PRIVATE_API_H_