Add a factory and defines for native Linux surfaces.

ui/base/ozone/surface_factory_ozone.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_OZONE_SURFACE_LNUX_FACTORY_OZONE_H_
+#define UI_BASE_OZONE_SURFACE_LNUX_FACTORY_OZONE_H_
+
+#include  "ui/gfx/native_widget_types.h"
+
+namespace gfx {
+class VSyncProvider;
+} //  namespace gfx
+
+namespace ui {
+
+class SurfaceFactoryOzone {
+ public:
+  SurfaceFactoryOzone();
+  virtual ~SurfaceFactoryOzone();
+
+  // Returns the instance
+  static SurfaceFactoryOzone* GetInstance();
+
+  // Returns a display spec as in |CreateDisplayFromSpec| for the default
+  // native surface.
+  virtual const char* DefaultDisplaySpec();
+
+  // Set the implementation delegate.
+  static void SetDelegate(SurfaceFactoryOzone* delegate);

[piman, 2013/05/21 18:32:15]

nit: SetInstance?

[rjkroege, 2013/05/22 17:08:30]

Done.

+
+  // TODO(rjkroege): Add a status code if necessary.
+  // Configure display hardware. Must be called from within the GPU process

[piman, 2013/05/21 18:32:15]

nit: Configures

[rjkroege, 2013/05/22 17:08:30]

Done.

+  // before the sandbox has been activated.
+  virtual void InitializeHardware() = 0;
+
+  // Clean up display hardware state. Call this from within the GPU process.

[piman, 2013/05/21 18:32:15]

nit: Cleans

[rjkroege, 2013/05/22 17:08:30]

Done.

+  // This method must be safe to run inside of the sandbox.
+  virtual void ShutdownHardware() = 0;
+
+  // Obtain an AcceleratedWidget backed by a native Linux framebuffer.

[piman, 2013/05/21 18:32:15]

nit: Obtains

[rjkroege, 2013/05/22 17:08:30]

Done.

+  // The  AcceleratedWidget is valid only in the GPU process.
+  virtual gfx::AcceleratedWidget GetAcceleratedWidget(
+      const gfx::GLSurfaceHandle& handle) = 0;

[piman, 2013/05/21 18:32:15]

Is this call used? I don't see it. It's also somewhat strange because
GLSurfaceHandle is really only used inside of content/ to represent the
renderer's output surface wrt the browser, the ui/ layer never sees it.

[rjkroege, 2013/05/22 17:08:30]

I think that your comment in https://codereview.chromium.org/14985005 makes it
clear that I am not calling this in the right place.

+
+  // Sets up GL bindings for the native surface.
+  virtual bool LoadEGLGLES2Bindings() = 0;
+
+  // Test if the given AcceleratedWidget instance can be resized. (Native

[piman, 2013/05/21 18:32:15]

nit: Tests

[rjkroege, 2013/05/22 17:08:30]

Done.

+  // hardware may only support a single fixed size.)
+  // Perhaps, this should be "attempt to resize the accelerated widget"?
+  virtual bool AcceleratedWidgetCanBeResized(gfx::AcceleratedWidget w) = 0;
+
+  // Returns a gfx::VsyncProvider for the provided AcceleratedWidget. Note
+  // that this may be called after we have entered the sandbox so if there are
+  // operations (e.g. opening a file descriptor providing vsync events) that
+  // must be done outside of the sandbox, they must have been completed
+  // in InitializeHardware. Returns NULL on error.
+  virtual gfx::VSyncProvider* GetVSyncProvider(gfx::AcceleratedWidget w) = 0;
+};
+
+}  // namespace ui
+
+
+#endif  // UI_BASE_OZONE_SURFACE_LNUX_FACTORY_OZONE_H_