GPU: Build most of the gpu as a single DLL.

gpu/gles2_implementation.gypi

Index: gpu/gles2_implementation.gypi
===================================================================
--- gpu/gles2_implementation.gypi	(revision 124716)
+++ gpu/gles2_implementation.gypi	(working copy)
@@ -1,20 +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.
-
-{
-  # Library emulates GLES2 using command_buffers.
-  'dependencies': [
-    '../base/base.gyp:base',
-    '../ui/gfx/gl/gl.gyp:gl',
-  ],
-  'all_dependent_settings': {
-    'include_dirs': [
-      # For GLES2/gl2.h
-      '<(DEPTH)/third_party/khronos',
-    ],
-  },
-  'sources': [
-    '<@(gles2_implementation_source_files)',
-  ],
-}