gpu: Add CHROMIUM_copy_image extension.

ui/gl/gl_surface.cc

Index: ui/gl/gl_surface.cc
diff --git a/ui/gl/gl_surface.cc b/ui/gl/gl_surface.cc
index 7fcb093c9f6434d524d5f4d41f9b90f87c68b546..6ddb5c91db6759d11af669847c2fb3939085eaa5 100644
--- a/ui/gl/gl_surface.cc
+++ b/ui/gl/gl_surface.cc
@@ -203,6 +203,14 @@ bool GLSurface::ExtensionsContain(const char* c_extensions, const char* name) {
 void GLSurface::OnSetSwapInterval(int interval) {
 }
 
+bool GLSurface::SupportsInsertFence() {
+  return false;
+}
+
+void GLSurface::InsertFence(const base::Closure& callback) {
+  NOTREACHED();
+}
+
 GLSurfaceAdapter::GLSurfaceAdapter(GLSurface* surface) : surface_(surface) {}
 
 bool GLSurfaceAdapter::Initialize(GLSurface::Format format) {
@@ -357,6 +365,14 @@ bool GLSurfaceAdapter::BuffersFlipped() const {
   return surface_->BuffersFlipped();
 }
 
+bool GLSurfaceAdapter::SupportsInsertFence() {
+  return surface_->SupportsInsertFence();
+}
+
+void GLSurfaceAdapter::InsertFence(const base::Closure& callback) {
+  return surface_->InsertFence(callback);
+}
+
 GLSurfaceAdapter::~GLSurfaceAdapter() {}
 
 scoped_refptr<GLSurface> InitializeGLSurface(scoped_refptr<GLSurface> surface) {