[Ozone-GBM] Adding NativeWindowDelegate to IPC window changes to the GPU

ui/ozone/platform/dri/dri_window_delegate.h

Index: ui/ozone/platform/dri/dri_window_delegate.h
diff --git a/ui/ozone/platform/dri/dri_window_delegate.h b/ui/ozone/platform/dri/dri_window_delegate.h
new file mode 100644
index 0000000000000000000000000000000000000000..2787e2cdf8ea24c37ab5fc73093d6e7b5df3ad10
--- /dev/null
+++ b/ui/ozone/platform/dri/dri_window_delegate.h
@@ -0,0 +1,52 @@
+// 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_DRI_WINDOW_DELEGATE_H_
+#define UI_OZONE_PLATFORM_DRI_DRI_WINDOW_DELEGATE_H_
+
+#include "ui/gfx/native_widget_types.h"
+
+namespace gfx {
+class Rect;
+}  // namespace gfx
+
+namespace ui {
+
+class HardwareDisplayController;
+
+// Interface for the display-server half of a DriWindow.
+//
+// The main implementation of this lives in the process that owns the display
+// connection (usually the GPU process) and associates a platform window
+// (DriWindow) with a display. A window is associated with the display whose
+// bounds contains the window bounds. If there's no suitable display, the window
+// is disconnected and its contents will not be visible.
+//
+// In software mode, this is owned directly on DriWindow because the display
+// controller object is in the same process.
+//
+// In accelerated mode, there's a proxy implementation and calls are forwarded
+// to the real object in the GPU process via IPC.
+class DriWindowDelegate {
+ public:
+  virtual ~DriWindowDelegate() {}
+
+  virtual void Initialize() = 0;
+
+  virtual void Shutdown() = 0;
+
+  // Returns the accelerated widget associated with the delegate.
+  virtual gfx::AcceleratedWidget GetAcceleratedWidget() = 0;
+
+  // Returns the current controller the window is displaying on. Callers should
+  // not cache the result as the controller may change as the window is moved.
+  virtual HardwareDisplayController* GetController() = 0;
+
+  // Called when the window is resized/moved.
+  virtual void OnBoundsChanged(const gfx::Rect& bounds) = 0;
+};
+
+}  // namespace ui
+
+#endif  // UI_OZONE_PLATFORM_DRI_DRI_WINDOW_DELEGATE_H_