Add a factory and defines for native Linux surfaces.

ui/base/linux/native_surface_linux_factory.h

+// Copyright (c) 2013 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_BASE_LINUX_NATIVE_SURFACE_LNUX_FACTORY_
+#define UI_BASE_LINUX_NATIVE_SURFACE_LNUX_FACTORY_
+
+#include "base/memory/scoped_ptr.h"
+#include  "ui/gfx/native_widget_types.h"
+
+namespace ui {
+
+class NativeSurfaceLinuxFactoryDelegate;
+
+template <typename T> struct DefaultSingletonTraits;
+class NativeSurfaceLinuxFactory {
+ public:
+

[DaveMoore, 2013/04/30 17:53:42]

Nit: no blank line

[rjkroege, 2013/05/06 18:46:24]

Done.

+  NativeSurfaceLinuxFactory();
+  ~NativeSurfaceLinuxFactory();
+
+  static NativeSurfaceLinuxFactory* GetInstance();
+
+  // Returns a display spec as in |CreateDisplayFromSpec| for the default
+  // native surface.
+  const char* DefaultDisplaySpec();
+
+  // Set an optional delegate.
+  void SetDelegate(NativeSurfaceLinuxFactoryDelegate* delegate);
+
+  // Configure display hardware. Call this once from within the GPU process.
+  void InitializeHardware();
+
+  // Clean up display hardware state.
+  void ShutdownHardware();
+
+  // Obtain an AcceleratedWidget backed by a native Linux framebuffer.
+  gfx::AcceleratedWidget GetAcceleratedWidget(
+      const gfx::GLSurfaceHandle& handle);
+
+  // Sets up GL bindings for the native surface.
+  bool LoadEGLGLES2Bindings();
+
+  // Test if the given AcceleratedWidget instance can be resized. (Native
+  // hardware may only support a single fixed size.)
+  bool AcceleratedWidgetCanBeResized(gfx::AcceleratedWidget w);
+
+ private:
+  friend struct DefaultSingletonTraits<NativeSurfaceLinuxFactory>;
+  scoped_ptr<NativeSurfaceLinuxFactoryDelegate> delegate_;
+
+  DISALLOW_COPY_AND_ASSIGN(NativeSurfaceLinuxFactory);
+};
+
+}  // namespace ui
+
+
+#endif  // UI_BASE_LINUX_NATIVE_SURFACE_LNUX_FACTORY_