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

chrome/browser/gpu_blacklist.cc

 // Copyright (c) 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/browser/gpu_blacklist.h"
 
 #include "base/json/json_reader.h"
 #include "base/logging.h"
 #include "base/string_number_conversions.h"
 #include "base/string_util.h"
@@ skipping 471 matching lines @@
   return true;
 }
 
 GpuFeatureFlags GpuBlacklist::DetermineGpuFeatureFlags(
     GpuBlacklist::OsType os,
     Version* os_version,
     const GPUInfo& gpu_info) {
   active_entries_.clear();
   GpuFeatureFlags flags;
   // No need to go through blacklist entries if GPUInfo isn't available.
-  if (gpu_info.progress() == GPUInfo::kUninitialized)
+  if (gpu_info.level() == GPUInfo::kUninitialized)
     return flags;
   scoped_ptr<Version> driver_version(
       Version::GetVersionFromString(gpu_info.driver_version()));
   if (driver_version.get() == NULL)
     return flags;
 
   if (os == kOsAny)
     os = GetOsType();
   scoped_ptr<Version> my_os_version;
   if (os_version == NULL) {
@@ skipping 72 matching lines @@
 #endif
 }
 
 void GpuBlacklist::Clear() {
   for (size_t i = 0; i < blacklist_.size(); ++i)
     delete blacklist_[i];
   blacklist_.clear();
   active_entries_.clear();
 }