gpu: Remove Create/DeleteImage IPC by adding an X11_PIXMAP_BUFFER GpuMemoryBuffer type.

ui/gl/gl_image_win.cc

Index: ui/gl/gl_image_win.cc
diff --git a/ui/gl/gl_image_win.cc b/ui/gl/gl_image_win.cc
index 1486520d6a769c88bec6ff271c850d69d3c463ca..e5b161bb800dfe8b14c92e1169f20c2cdc64b6d4 100644
--- a/ui/gl/gl_image_win.cc
+++ b/ui/gl/gl_image_win.cc
@@ -11,21 +11,6 @@
 
 namespace gfx {
 
-scoped_refptr<GLImage> GLImage::CreateGLImage(gfx::PluginWindowHandle window) {
-  TRACE_EVENT0("gpu", "GLImage::CreateGLImage");
-  switch (GetGLImplementation()) {
-    case kGLImplementationOSMesaGL:
-    case kGLImplementationDesktopGL:
-    case kGLImplementationEGLGLES2:
-      return NULL;
-    case kGLImplementationMockGL:
-      return new GLImageStub;
-    default:
-      NOTREACHED();
-      return NULL;
-  }
-}
-
 scoped_refptr<GLImage> GLImage::CreateGLImageForGpuMemoryBuffer(
     gfx::GpuMemoryBufferHandle buffer,
     gfx::Size size,