Implemented ForceMaximizeBrowserWindowOnFirstRun policy, added unit test and browser test.

ash/test/test_shell_delegate.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 ASH_TEST_TEST_SHELL_DELEGATE_H_
 #define ASH_TEST_TEST_SHELL_DELEGATE_H_
 
 #include <string>
 
 #include "ash/media_delegate.h"
@@ skipping 19 matching lines @@
   void set_multi_profiles_enabled(bool multi_profiles_enabled) {
     multi_profiles_enabled_ = multi_profiles_enabled;
   }
 
   // Overridden from ShellDelegate:
   bool IsFirstRunAfterBoot() const override;
   bool IsIncognitoAllowed() const override;
   bool IsMultiProfilesEnabled() const override;
   bool IsRunningInForcedAppMode() const override;
   bool IsMultiAccountEnabled() const override;
+  bool IsFirstTimeMaximized() const override;
   void PreInit() override;
   void PreShutdown() override;
   void Exit() override;
   keyboard::KeyboardControllerProxy* CreateKeyboardControllerProxy() override;
   void VirtualKeyboardActivated(bool activated) override;
   void AddVirtualKeyboardStateObserver(
       VirtualKeyboardStateObserver* observer) override;
   void RemoveVirtualKeyboardStateObserver(
       VirtualKeyboardStateObserver* observer) override;
   content::BrowserContext* GetActiveBrowserContext() override;
@@ skipping 11 matching lines @@
   GPUSupport* CreateGPUSupport() override;
   base::string16 GetProductName() const override;
 
   int num_exit_requests() const { return num_exit_requests_; }
 
   TestSessionStateDelegate* test_session_state_delegate() {
     return test_session_state_delegate_;
   }
 
   void SetMediaCaptureState(MediaCaptureState state);
+  void SetFirstTimeMaximized(bool maximized) {

[bartfab (slow), 2015/03/12 11:54:43]

Nit: If you rename IsFirstTimeMaximized(), rename this method and the member
accordingly.

[peletskyi, 2015/03/18 13:28:09]

Done.

+    first_time_maximized_ = maximized;
+  };
 
  private:
   int num_exit_requests_;
   bool multi_profiles_enabled_;
+  bool first_time_maximized_;
 
   scoped_ptr<content::BrowserContext> active_browser_context_;
   scoped_ptr<app_list::AppListViewDelegate> app_list_view_delegate_;
 
   ObserverList<ash::VirtualKeyboardStateObserver> keyboard_state_observer_list_;
 
   TestSessionStateDelegate* test_session_state_delegate_;  // Not owned.
 
   DISALLOW_COPY_AND_ASSIGN(TestShellDelegate);
 };
 
 }  // namespace test
 }  // namespace ash
 
 #endif  // ASH_TEST_TEST_SHELL_DELEGATE_H_