Change X11 error handler override to allow easy X11 error checking.

gpu/command_buffer/service/texture_manager_unittest.cc

 // Copyright (c) 2011 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.
 
+// Include gtest.h out of order because <X11/X.h> #define's Bool & None, which
+// gtest uses as struct names (inside a namespace).  This means that
+// #include'ing gtest after anything that pulls in X.h fails to compile.
+// This is http://code.google.com/p/googletest/issues/detail?id=371
+#include "testing/gtest/include/gtest/gtest.h"
 #include "gpu/command_buffer/service/texture_manager.h"
 
 #include "base/memory/scoped_ptr.h"
 #include "gpu/command_buffer/common/gl_mock.h"
 #include "gpu/command_buffer/service/feature_info.h"
 #include "gpu/command_buffer/service/test_helper.h"
-#include "testing/gtest/include/gtest/gtest.h"
 
 using ::testing::Pointee;
 using ::testing::_;
 
 namespace gpu {
 namespace gles2 {
 
 class TextureManagerTest : public testing::Test {
  public:
   static const GLint kMaxTextureSize = 16;
@@ skipping 670 matching lines @@
   TextureManager::TextureInfo* info = manager_.GetTextureInfo(kClient1Id);
   ASSERT_TRUE(info != NULL);
   manager.SetInfoTarget(info, GL_TEXTURE_EXTERNAL_OES);
   EXPECT_EQ(static_cast<GLenum>(GL_TEXTURE_EXTERNAL_OES), info->target());
   EXPECT_FALSE(info->CanGenerateMipmaps(&feature_info));
   manager.Destroy(false);
 }
 
 }  // namespace gles2
 }  // namespace gpu
-
-