Screen.orientation lock API implementation for Windows8 and later.

content/browser/browser_main_loop.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 "content/browser/browser_main_loop.h"
 
 #include <stddef.h>
 #include <utility>
 
 #include "base/bind.h"
@@ skipping 111 matching lines @@
 #include "ui/ozone/public/client_native_pixmap_factory.h"
 #include "ui/ozone/public/ozone_platform.h"
 #endif
 
 #if defined(OS_WIN)
 #include <windows.h>
 #include <commctrl.h>
 #include <shellapi.h>
 
 #include "base/memory/memory_pressure_monitor_win.h"
+#include "base/win/windows_version.h"
+#include "content/browser/screen_orientation/screen_orientation_delegate_win.h"
 #include "content/browser/system_message_window_win.h"
 #include "content/common/sandbox_win.h"
 #include "net/base/winsock_init.h"
 #include "ui/base/l10n/l10n_util_win.h"
 #endif
 
 #if defined(OS_CHROMEOS)
 #include "base/memory/memory_pressure_monitor_chromeos.h"
 #include "chromeos/chromeos_switches.h"
 #endif
@@ skipping 445 matching lines @@
 
   {
     system_stats_monitor_.reset(
         new base::trace_event::TraceEventSystemStatsMonitor(
             base::ThreadTaskRunnerHandle::Get()));
   }
 #endif  // !defined(OS_IOS)
 
 #if defined(OS_WIN)
   system_message_window_.reset(new SystemMessageWindowWin);
+  if (base::win::GetVersion() >= base::win::VERSION_WIN8)
+    screen_orientation_delegate_.reset(new ScreenOrientationDelegateWin());

[cpu_(ooo_6.6-7.5), 2016/03/11 02:12:01]

can this be later? like in PostMainMessageLoopStart?

[aleksandar.stojiljkovic, 2016/03/11 19:29:26]

Don't know.
Same thing for Android is in this method (line 660) so I thought it is better to
keep them together.

 #endif
 
   // TODO(boliu): kSingleProcess check is a temporary workaround for
   // in-process Android WebView. crbug.com/503724 tracks proper fix.
   if (!parsed_command_line_.HasSwitch(switches::kSingleProcess)) {
     base::DiscardableMemoryAllocator::SetInstance(
         HostDiscardableSharedMemoryManager::current());
   }
 
   if (parts_)
@@ skipping 863 matching lines @@
   DCHECK(is_tracing_startup_for_duration_);
 
   is_tracing_startup_for_duration_ = false;
   TracingController::GetInstance()->StopTracing(
       TracingController::CreateFileSink(
           startup_trace_file_,
           base::Bind(OnStoppedStartupTracing, startup_trace_file_)));
 }
 
 }  // namespace content