Remove GraphicsContext3D:: stubs from cc

cc/stubs/extensions_3d_chromium.h

Index: cc/stubs/extensions_3d_chromium.h
diff --git a/cc/stubs/extensions_3d_chromium.h b/cc/stubs/extensions_3d_chromium.h
deleted file mode 100644
index f5d36d2300a7e444a2758500a3ee6951abacc710..0000000000000000000000000000000000000000
--- a/cc/stubs/extensions_3d_chromium.h
+++ /dev/null
@@ -1,54 +0,0 @@
-// Copyright (c) 2012 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_STUBS_EXTENSIONS3DCHROMIUM_H_
-#define CC_STUBS_EXTENSIONS3DCHROMIUM_H_
-
-#include "Extensions3D.h"
-
-// These enum names collides with gl2ext.h, so we just redefine them.
-#ifdef GL_TEXTURE_EXTERNAL_OES
-#undef GL_TEXTURE_EXTERNAL_OES
-#endif
-#ifdef GL_TEXTURE_USAGE_ANGLE
-#undef GL_TEXTURE_USAGE_ANGLE
-#endif
-#ifdef GL_FRAMEBUFFER_ATTACHMENT_ANGLE
-#undef GL_FRAMEBUFFER_ATTACHMENT_ANGLE
-#endif
-
-namespace cc {
-
-class Extensions3DChromium {
-public:
-    enum {
-        // GL_OES_EGL_image_external
-        GL_TEXTURE_EXTERNAL_OES = 0x8D65,
-
-        // GL_CHROMIUM_map_sub (enums inherited from GL_ARB_vertex_buffer_object)
-        READ_ONLY = 0x88B8,
-        WRITE_ONLY = 0x88B9,
-
-        // GL_ANGLE_texture_usage
-        GL_TEXTURE_USAGE_ANGLE = 0x93A2,
-        GL_FRAMEBUFFER_ATTACHMENT_ANGLE = 0x93A3,
-
-        // GL_EXT_texture_storage
-        BGRA8_EXT = 0x93A1,
-
-        // GL_EXT_occlusion_query_boolean
-        ANY_SAMPLES_PASSED_EXT = 0x8C2F,
-        ANY_SAMPLES_PASSED_CONSERVATIVE_EXT = 0x8D6A,
-        CURRENT_QUERY_EXT = 0x8865,
-        QUERY_RESULT_EXT = 0x8866,
-        QUERY_RESULT_AVAILABLE_EXT = 0x8867,
-
-        // GL_CHROMIUM_command_buffer_query
-        COMMANDS_ISSUED_CHROMIUM = 0x84F2
-    };
-};
-
-}
-
-#endif  // CC_STUBS_EXTENSIONS3DCHROMIUM_H_