Ported GpuCrashTest to Telemetry, renaming the test to ContextLost.

content/browser/gpu/gpu_data_manager_impl_private.cc

 // Copyright (c) 2013 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 "content/browser/gpu/gpu_data_manager_impl_private.h"
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/command_line.h"
 #include "base/debug/trace_event.h"
@@ skipping 1004 matching lines @@
     gpu::GpuSwitchingOption option =
         gpu::StringToGpuSwitchingOption(option_string);
     if (option != gpu::GPU_SWITCHING_OPTION_UNKNOWN)
       gpu_switching_ = option;
   }
 
 #if defined(OS_MACOSX)
   CGGetActiveDisplayList (0, NULL, &display_count_);
   CGDisplayRegisterReconfigurationCallback(DisplayReconfigCallback, owner_);
 #endif  // OS_MACOSX
+
+  // For testing only.
+  if (command_line->HasSwitch(
+          switches::kDisableDomainBlockingFor3DAPIsForTesting)) {
+    domain_blocking_enabled_ = false;
+  }
 }
 
 GpuDataManagerImplPrivate::~GpuDataManagerImplPrivate() {
 #if defined(OS_MACOSX)
   CGDisplayRemoveReconfigurationCallback(DisplayReconfigCallback, owner_);
 #endif
 }
 
 void GpuDataManagerImplPrivate::InitializeImpl(
     const std::string& gpu_blacklist_json,
@@ skipping 222 matching lines @@
 
 void GpuDataManagerImplPrivate::OnGpuProcessInitFailure() {
   gpu_process_accessible_ = false;
   gpu_info_.finalized = true;
   complete_gpu_info_already_requested_ = true;
   // Some observers might be waiting.
   NotifyGpuInfoUpdate();
 }
 
 }  // namespace content