platform-window: Add a PlatformWindowFactory for creating windows.

ui/ozone/public/ozone_platform.cc

 // Copyright 2014 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 "base/command_line.h"
 #include "base/debug/trace_event.h"
 #include "base/logging.h"
 #include "ui/events/device_data_manager.h"
 #include "ui/ozone/platform_object.h"
 #include "ui/ozone/platform_selection.h"
 #include "ui/ozone/public/ozone_platform.h"
 #include "ui/ozone/public/ozone_switches.h"
+#include "ui/platform_window/platform_window.h"
+#include "ui/platform_window/platform_window_factory.h"
 
 namespace ui {
 
 namespace {
 
 bool g_platform_initialized_ui = false;
 bool g_platform_initialized_gpu = false;
 
+class OzoneWindowFactory : public PlatformWindowFactory {
+ public:
+  static void CreateInstance() { new OzoneWindowFactory(); }
+
+ private:
+  OzoneWindowFactory() {}
+  virtual ~OzoneWindowFactory() {}
+
+  // PlatformWindowFactory:
+  virtual scoped_ptr<PlatformWindow> CreatePlatformWindow(
+      PlatformWindowDelegate* delegate,
+      const gfx::Rect& bounds) OVERRIDE {
+    return ui::OzonePlatform::GetInstance()->CreatePlatformWindow(delegate,
+                                                                  bounds);
+  }
+};
 }
 
 OzonePlatform::OzonePlatform() {
   CHECK(!instance_) << "There should only be a single OzonePlatform.";
   instance_ = this;
   g_platform_initialized_ui = false;
   g_platform_initialized_gpu = false;
 }
 
 OzonePlatform::~OzonePlatform() {
   CHECK_EQ(instance_, this);
   instance_ = NULL;
 }
 
 // static
 void OzonePlatform::InitializeForUI() {
   CreateInstance();
   if (g_platform_initialized_ui)
     return;
   g_platform_initialized_ui = true;
   instance_->InitializeUI();
   // This is deliberately created after initializing so that the platform can
   // create its own version of DDM.
   DeviceDataManager::CreateInstance();
+  OzoneWindowFactory::CreateInstance();
 }
 
 // static
 void OzonePlatform::InitializeForGPU() {
   CreateInstance();
   if (g_platform_initialized_gpu)
     return;
   g_platform_initialized_gpu = true;
   instance_->InitializeGPU();
 }
@@ skipping 16 matching lines @@
 
     // TODO(spang): Currently need to leak this object.
     CHECK_EQ(instance_, platform.release());
   }
 }
 
 // static
 OzonePlatform* OzonePlatform::instance_;
 
 }  // namespace ui