ui: Add support for creating GLImage instances from shared memory pools.

cc/test/test_image_factory.cc

Index: cc/test/test_image_factory.cc
diff --git a/cc/test/test_image_factory.cc b/cc/test/test_image_factory.cc
index aaf61ac76c55263728ecac549d43dc4d0bc2ed4d..796b6d81e5ad589da8ec8639041b73d492901992 100644
--- a/cc/test/test_image_factory.cc
+++ b/cc/test/test_image_factory.cc
@@ -24,7 +24,7 @@ scoped_refptr<gfx::GLImage> TestImageFactory::CreateImageForGpuMemoryBuffer(
 
   scoped_refptr<gfx::GLImageSharedMemory> image(
       new gfx::GLImageSharedMemory(size, internalformat));
-  if (!image->Initialize(handle.handle, handle.id, format))
+  if (!image->Initialize(handle.handle, handle.id, format, handle.offset))
     return nullptr;
 
   return image;