Allow creating GLImage-backed textures with glTexStorage2D.

cc/test/test_web_graphics_context_3d.h

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CC_TEST_TEST_WEB_GRAPHICS_CONTEXT_3D_H_
 #define CC_TEST_TEST_WEB_GRAPHICS_CONTEXT_3D_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
@@ skipping 338 matching lines @@
   }
   void set_gpu_rasterization(bool gpu_rasterization) {
     test_capabilities_.gpu_rasterization = gpu_rasterization;
   }
   void set_enable_dc_layers(bool support) {
     test_capabilities_.dc_layers = support;
   }
   void set_support_multisample_compatibility(bool support) {
     test_capabilities_.multisample_compatibility = support;
   }
+  void set_support_texture_buffer_chromium(bool support) {
+    test_capabilities_.texture_buffer_chromium = support;
+  }
 
   // When this context is lost, all contexts in its share group are also lost.
   void add_share_group_context(TestWebGraphicsContext3D* context3d) {
     shared_contexts_.push_back(context3d);
   }
 
   void set_max_texture_size(int size) { max_texture_size_ = size; }
 
   static const GLuint kExternalTextureId;
   virtual GLuint NextTextureId();
@@ skipping 126 matching lines @@
 
   scoped_refptr<Namespace> namespace_;
   static Namespace* shared_namespace_;
 
   base::WeakPtrFactory<TestWebGraphicsContext3D> weak_ptr_factory_;
 };
 
 }  // namespace cc
 
 #endif  // CC_TEST_TEST_WEB_GRAPHICS_CONTEXT_3D_H_