gpu: Refactor GpuMemoryBuffer framework for multi-process support.

ui/gl/gl_image_mac.cc

Index: ui/gl/gl_image_mac.cc
diff --git a/ui/gl/gl_image_mac.cc b/ui/gl/gl_image_mac.cc
index b244a22ad939033083260080219e40553fe544b8..04dc61e870bd640a0b29b7614970e41e0fd0a29d 100644
--- a/ui/gl/gl_image_mac.cc
+++ b/ui/gl/gl_image_mac.cc
@@ -27,7 +27,9 @@ scoped_refptr<GLImage> GLImage::CreateGLImage(gfx::PluginWindowHandle window) {
 }
 
 scoped_refptr<GLImage> GLImage::CreateGLImageForGpuMemoryBuffer(
-    gfx::GpuMemoryBufferHandle buffer, gfx::Size size) {
+    gfx::GpuMemoryBufferHandle buffer,
+    gfx::Size size,
+    unsigned internalformat) {
   TRACE_EVENT0("gpu", "GLImage::CreateGLImageForGpuMemoryBuffer");
   switch (GetGLImplementation()) {
     case kGLImplementationOSMesaGL:
@@ -35,7 +37,8 @@ scoped_refptr<GLImage> GLImage::CreateGLImageForGpuMemoryBuffer(
     case kGLImplementationAppleGL:
       switch (buffer.type) {
         case SHARED_MEMORY_BUFFER: {
-          scoped_refptr<GLImageShm> image(new GLImageShm(size));
+          scoped_refptr<GLImageShm> image(
+              new GLImageShm(size, internalformat));
           if (!image->Initialize(buffer))
             return NULL;