Implemented ForceMaximizeBrowserWindowOnFirstRun policy, added unit test and browser test.

ash/test/test_shell_delegate.h

Index: ash/test/test_shell_delegate.h
diff --git a/ash/test/test_shell_delegate.h b/ash/test/test_shell_delegate.h
index a2306bb95070b5025eb26d4a3c4a6141cafc87d6..f9655206c9ba5e7bc0347eb20de9f12b7769c35d 100644
--- a/ash/test/test_shell_delegate.h
+++ b/ash/test/test_shell_delegate.h
@@ -37,6 +37,7 @@ class TestShellDelegate : public ShellDelegate {
   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;
@@ -68,10 +69,14 @@ class TestShellDelegate : public ShellDelegate {
   }
 
   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_;