Split GLX implementations of *GLContext into GLContextGLX and *GLSurfaceGLX.

Surfaces are independent of contexts in GL. To facilitate sharing of surfaces between processes, I have separated them from the notion of contexts because contexts cannot be shared between processes.

I started with EGL in r81512 and WGL in r81807 and OSMesa in r81998. This is the same thing for GLX

GLContextGLX still has a pointer to a surface and still has some surface specific operations that just forward through to it. Once I have refactored all the GLContext implementations in this way, I will remove these pointers and the surface specific opertations.

There will not be "view" and "offscreen" GL contexts. Rather there will be a single context type for each backend which can be made current with a surface that directs output either to a view or offscreen surface.

Also, added virtual qualifier to GLSurface::Initialize implementations to silence clang warnings.

TEST=WebGL locally, try
BUG=none
Review URL: http://codereview.chromium.org/6864031
Review URL: http://codereview.chromium.org/6881024

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@84090 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 2 insertions, 6 deletions

diff --git a/ui/gfx/gl/gl_surface_wgl.h b/ui/gfx/gl/gl_surface_wgl.h
index d94c565..b768655 100644
--- a/ui/gfx/gl/gl_surface_wgl.h
+++ b/ui/gfx/gl/gl_surface_wgl.h
@@ -27,10 +27,8 @@ class NativeViewGLSurfaceWGL : public GLSurfaceWGL {
   explicit NativeViewGLSurfaceWGL(gfx::PluginWindowHandle window);
   virtual ~NativeViewGLSurfaceWGL();
 
-  // Initializes the GL context.
-  bool Initialize();
-
   // Implement GLSurface.
+  virtual bool Initialize();
   virtual void Destroy();
   virtual bool IsOffscreen();
   virtual bool SwapBuffers();
@@ -51,10 +49,8 @@ class PbufferGLSurfaceWGL : public GLSurfaceWGL {
   explicit PbufferGLSurfaceWGL(const gfx::Size& size);
   virtual ~PbufferGLSurfaceWGL();
 
-  // Initializes the GL context.
-  bool Initialize();
-
   // Implement GLSurface.
+  virtual bool Initialize();
   virtual void Destroy();
   virtual bool IsOffscreen();
   virtual bool SwapBuffers();