Add a factory and defines for native Linux surfaces.

ui/gl/gl_surface_egl.h

 // Copyright (c) 2012 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_GL_GL_SURFACE_EGL_H_
 #define UI_GL_GL_SURFACE_EGL_H_
 
 #if defined(OS_WIN)
 #include <windows.h>
 #endif
@@ skipping 51 matching lines @@
   virtual bool Resize(const gfx::Size& size) OVERRIDE;
   virtual bool Recreate() OVERRIDE;
   virtual bool IsOffscreen() OVERRIDE;
   virtual bool SwapBuffers() OVERRIDE;
   virtual gfx::Size GetSize() OVERRIDE;
   virtual EGLSurface GetHandle() OVERRIDE;
   virtual std::string GetExtensions() OVERRIDE;
   virtual bool PostSubBuffer(int x, int y, int width, int height) OVERRIDE;
   virtual VSyncProvider* GetVSyncProvider() OVERRIDE;
 
+  // Create a NativeViewGLSurfaceEGL with an externally provided VSyncProvider.
+  virtual bool Initialize(VSyncProvider* sync_provider);
+
  protected:
   virtual ~NativeViewGLSurfaceEGL();
   void SetHandle(EGLSurface surface);
 
  private:
   gfx::AcceleratedWidget window_;
   EGLSurface surface_;
   bool supports_post_sub_buffer_;
   EGLConfig config_;
 
@@ skipping 24 matching lines @@
  private:
   gfx::Size size_;
   EGLSurface surface_;
 
   DISALLOW_COPY_AND_ASSIGN(PbufferGLSurfaceEGL);
 };
 
 }  // namespace gfx
 
 #endif  // UI_GL_GL_SURFACE_EGL_H_