[ScreenOrientation] Hide ScreenOrientationProvider inside WebContentsImpl.

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 <string>
 #include <utility>
@@ skipping 109 matching lines @@
 
 #if defined(OS_ANDROID)
 #include "base/android/jni_android.h"
 #include "components/tracing/common/graphics_memory_dump_provider_android.h"
 #include "content/browser/android/browser_startup_controller.h"
 #include "content/browser/android/scoped_surface_request_manager.h"
 #include "content/browser/android/tracing_controller_android.h"
 #include "content/browser/media/android/browser_media_player_manager.h"
 #include "content/browser/renderer_host/context_provider_factory_impl_android.h"
 #include "content/browser/screen_orientation/screen_orientation_delegate_android.h"
-#include "content/public/browser/screen_orientation_provider.h"
 #include "media/base/android/media_client_android.h"
 #include "ui/android/screen_android.h"
 #include "ui/display/screen.h"
 #include "ui/gl/gl_surface.h"
 #endif
 
 #if defined(OS_MACOSX)
 #include "base/memory/memory_pressure_monitor_mac.h"
 #include "content/browser/bootstrap_sandbox_manager_mac.h"
 #include "content/browser/cocoa/system_hotkey_helper_mac.h"
@@ skipping 648 matching lines @@
     }
     BrowserMediaPlayerManager::InitSurfaceTexturePeer();
   }
 
   if (!parsed_command_line_.HasSwitch(
       switches::kDisableScreenOrientationLock)) {
     TRACE_EVENT0("startup",
                  "BrowserMainLoop::Subsystem:ScreenOrientationProvider");
     screen_orientation_delegate_.reset(
         new ScreenOrientationDelegateAndroid());
-    ScreenOrientationProvider::SetDelegate(screen_orientation_delegate_.get());
   }
 #endif
 
 #if defined(OS_MACOSX)
   if (BootstrapSandboxManager::ShouldEnable()) {
     TRACE_EVENT0("startup",
                  "BrowserMainLoop::Subsystem:BootstrapSandbox");
     CHECK(BootstrapSandboxManager::GetInstance());
   }
 #endif
@@ skipping 989 matching lines @@
         audio_thread_->task_runner(), audio_thread_->worker_task_runner(),
         MediaInternals::GetInstance());
   }
   CHECK(audio_manager_);
 
   audio_system_ = media::AudioSystemImpl::Create(audio_manager_.get());
   CHECK(audio_system_);
 }
 
 }  // namespace content