[Ozone-GBM] Add basic support for display configuration over IPC

ui/ozone/platform/dri/chromeos/display_message_handler.h

+// 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.
+
+#ifndef UI_OZONE_PLATFORM_DRI_CHROMEOS_DISPLAY_MESSAGE_HANDLER_H_
+#define UI_OZONE_PLATFORM_DRI_CHROMEOS_DISPLAY_MESSAGE_HANDLER_H_
+
+#include "base/memory/scoped_ptr.h"
+#include "ui/ozone/public/gpu_platform_support.h"
+
+namespace gfx {
+class Point;
+}
+
+namespace ui {
+
+class NativeDisplayDelegateDri;
+
+struct DisplayMode_Params;
+struct DisplaySnapshot_Params;
+
+class DisplayMessageHandler : public GpuPlatformSupport {

[spang, 2014/07/08 17:26:21]

I'm not super happy about reusing the main interface.. but I guess this works.

+ public:
+  DisplayMessageHandler(scoped_ptr<NativeDisplayDelegateDri> ndd);
+  virtual ~DisplayMessageHandler();
+
+  // GpuPlatformSupport:
+  virtual void OnChannelEstablished(IPC::Sender* sender) OVERRIDE;
+
+  // IPC::Listener:
+  virtual bool OnMessageReceived(const IPC::Message& message) OVERRIDE;
+
+ private:
+  void OnForceDPMSOn();
+  void OnRefreshNativeDisplays();
+  void OnConfigureNativeDisplay(int64_t id,
+                                const DisplayMode_Params& mode,
+                                const gfx::Point& origin);
+  void OnDisableNativeDisplay(int64_t id);
+
+  IPC::Sender* sender_;
+  scoped_ptr<NativeDisplayDelegateDri> ndd_;
+
+  DISALLOW_COPY_AND_ASSIGN(DisplayMessageHandler);
+};
+
+}  // namespace ui
+
+#endif  // UI_OZONE_PLATFORM_DRI_CHROMEOS_DISPLAY_MESSAGE_HANDLER_H_