Change CHROMIUM_image declarations to support multi planar input.

gpu/command_buffer/tests/gl_manager.h

Index: gpu/command_buffer/tests/gl_manager.h
diff --git a/gpu/command_buffer/tests/gl_manager.h b/gpu/command_buffer/tests/gl_manager.h
index c163ac01cc9f94a5bd835610014861c2e05ce516..cb4f516293a813350ffda05d1e56673d57871067 100644
--- a/gpu/command_buffer/tests/gl_manager.h
+++ b/gpu/command_buffer/tests/gl_manager.h
@@ -102,7 +102,7 @@ class GLManager : private GpuControl {
 
   // GpuControl implementation.
   Capabilities GetCapabilities() override;
-  int32 CreateImage(ClientBuffer buffer,
+  int32 CreateImage(ClientBuffer* const buffers,
                     size_t width,
                     size_t height,
                     unsigned internalformat) override;