ozone: Initialize a subsystem only if necessary.

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 "base/bind.h"
 #include "base/command_line.h"
 #include "base/debug/trace_event.h"
 #include "base/file_util.h"
@@ skipping 104 matching lines @@
 
 #if defined(TCMALLOC_TRACE_MEMORY_SUPPORTED)
 #include "third_party/tcmalloc/chromium/src/gperftools/heap-profiler.h"
 #endif
 
 #if defined(USE_X11)
 #include "ui/gfx/x/x11_connection.h"
 #include "ui/gfx/x/x11_types.h"
 #endif
 
-#if defined(USE_OZONE)
-#include "ui/ozone/ozone_platform.h"
-#endif
-
 // One of the linux specific headers defines this as a macro.
 #ifdef DestroyAll
 #undef DestroyAll
 #endif
 
 namespace content {
 namespace {
 
 #if defined(OS_POSIX) && !defined(OS_MACOSX) && !defined(OS_ANDROID)
 void SetupSandbox(const CommandLine& parsed_command_line) {
@@ skipping 812 matching lines @@
   established_gpu_channel = true;
   BrowserGpuChannelHostFactory::Initialize(established_gpu_channel);
 #endif
 
 #if defined(OS_LINUX) && defined(USE_UDEV)
   device_monitor_linux_.reset(new DeviceMonitorLinux());
 #elif defined(OS_MACOSX)
   device_monitor_mac_.reset(new DeviceMonitorMac());
 #endif
 
-#if defined(USE_OZONE)
-  ui::OzonePlatform::Initialize();
-#endif
-
   // RDH needs the IO thread to be created
   {
     TRACE_EVENT0("startup",
       "BrowserMainLoop::BrowserThreadsStarted:InitResourceDispatcherHost");
     resource_dispatcher_host_.reset(new ResourceDispatcherHostImpl());
   }
 
   // MediaStreamManager needs the IO thread to be created.
   {
     TRACE_EVENT0("startup",
@@ skipping 152 matching lines @@
       base::TimeDelta::FromSeconds(delay_secs));
 }
 
 void BrowserMainLoop::EndStartupTracing(const base::FilePath& trace_file) {
   is_tracing_startup_ = false;
   TracingController::GetInstance()->DisableRecording(
       trace_file, base::Bind(&OnStoppedStartupTracing));
 }
 
 }  // namespace content