Defered collect DirectX diagnostics until they are needed for about:gpu....

chrome/gpu/gpu_info_collector_mac.mm

 // Copyright (c) 2006-2010 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 "chrome/gpu/gpu_info_collector.h"
 #include "base/logging.h"
 #include "base/scoped_ptr.h"
 #include "base/string_piece.h"
 #include "base/sys_string_conversions.h"
 #include "app/gfx/gl/gl_bindings.h"
@@ skipping 30 matching lines @@
 
 }  // namespace anonymous
 
 namespace gpu_info_collector {
 
 bool CollectGraphicsInfo(GPUInfo* gpu_info) {
   DCHECK(gpu_info);
 
   gpu_info->SetCanLoseContext(
       gfx::GetGLImplementation() == gfx::kGLImplementationEGLGLES2);
-  gpu_info->SetProgress(GPUInfo::kComplete);
+  gpu_info->SetLevel(GPUInfo::kComplete);
   return CollectGraphicsInfoGL(gpu_info);
 }
 
 bool CollectVideoCardInfo(GPUInfo* gpu_info) {
   DCHECK(gpu_info);
 
   if (gfx::GetGLImplementation() != gfx::kGLImplementationDesktopGL)
     return false;
 
   UInt32 vendor_id = 0, device_id = 0;
@@ skipping 22 matching lines @@
   // Use some jiggery-pokery to turn that utf8 string into a std::wstring.
   std::string gl_version_string = gpu_info->gl_version_string();
   size_t pos = gl_version_string.find_last_of('-');
   if (pos == std::string::npos)
     return false;
   gpu_info->SetDriverInfo("", gl_version_string.substr(pos + 1));
   return true;
 }
 
 }  // namespace gpu_info_collector