Implemented ForceMaximizeBrowserWindowOnFirstRun policy, added unit test and browser test.

chrome/common/pref_names.cc

 // 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.
 
 #include "chrome/common/pref_names.h"
 
 #include "base/basictypes.h"
 #include "chrome/common/pref_font_webkit_names.h"
 
 namespace prefs {
@@ skipping 814 matching lines @@
 // List of mounted file systems via the File System Provider API. Used to
 // restore them after a reboot.
 const char kFileSystemProviderMounted[] = "file_system_provider.mounted";
 
 // A boolean pref set to true if the virtual keyboard should be enabled.
 const char kTouchVirtualKeyboardEnabled[] = "ui.touch_virtual_keyboard_enabled";
 
 // A boolean pref that controls whether wake on SSID is enabled.
 const char kWakeOnWifiSsid[] = "settings.internet.wake_on_wifi_ssid";
 
+// This boolean controls if browser window is maximized on the first run.

[bartfab (slow), 2015/03/12 11:54:47]

Nit: How about:

"This boolean controls whether the first window shown on first run should be
unconditionally maximized, overriding the heuristic that normally chooses the
window size."

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

Done.

+const char kForceMaximizeBrowserWindowOnFirstRun[] = "ui.first_run_maximized";

[bartfab (slow), 2015/03/12 11:54:47]

Nit: How about s/first_run_maximized/force_maximize_on_first_run/ for
consistency?

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

Done.

 #endif  // defined(OS_CHROMEOS)
 
 // The disabled messages in IPC logging.
 const char kIpcDisabledMessages[] = "ipc_log_disabled_messages";
 
 // A boolean pref set to true if a Home button to open the Home pages should be
 // visible on the toolbar.
 const char kShowHomeButton[] = "browser.show_home_button";
 
 // A string value which saves short list of recently user selected encodings
@@ skipping 1433 matching lines @@
 const char kPasswordBubbleNopesCount[] = "password_bubble.nopes";
 
 // Last user's interaction with the password bubble.
 const char kPasswordBubbleLastInteractions[] = "password_bubble.interactions";
 
 // Boolean that indicates whether elevation is needed to recover Chrome upgrade.
 const char kRecoveryComponentNeedsElevation[] =
     "recovery_component.needs_elevation";
 
 }  // namespace prefs