Make gpu black list work again on Linux

gpu/config/gpu_info_collector.cc

 // 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.
 
 #include "gpu/config/gpu_info_collector.h"
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include <string>
 #include <vector>
 
+#include "base/command_line.h"
 #include "base/logging.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/metrics/sparse_histogram.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/string_piece.h"
 #include "base/strings/string_split.h"
 #include "base/strings/string_util.h"
 #include "base/trace_event/trace_event.h"
+#include "gpu/config/gpu_switches.h"
 #include "ui/gl/gl_bindings.h"
 #include "ui/gl/gl_context.h"
 #include "ui/gl/gl_implementation.h"
 #include "ui/gl/gl_surface.h"
 #include "ui/gl/gl_version_info.h"
 
 namespace {
 
 scoped_refptr<gfx::GLSurface> InitializeGLSurface() {
   scoped_refptr<gfx::GLSurface> surface(
@@ skipping 232 matching lines @@
     return;
   }
   for (size_t ii = 0; ii < gpu_info->secondary_gpus.size(); ++ii) {
     if (active_vendor_id == gpu_info->secondary_gpus[ii].vendor_id) {
       gpu_info->secondary_gpus[ii].active = true;
       return;
     }
   }
 }
 
+void ParseTestingIds(uint32_t* vendor_id, uint32_t* device_id) {
+  DCHECK(vendor_id);
+  DCHECK(device_id);

[Zhenyao Mo, 2016/01/29 22:40:35]

Set them to 0 by default.

+
+  base::CommandLine* command_line = base::CommandLine::ForCurrentProcess();
+
+  if (command_line->HasSwitch(switches::kGpuTestingVendorId))
+    base::HexStringToUInt(
+        command_line->GetSwitchValueASCII(switches::kGpuTestingVendorId),
+        vendor_id);
+
+  if (command_line->HasSwitch(switches::kGpuTestingDeviceId))
+    base::HexStringToUInt(
+        command_line->GetSwitchValueASCII(switches::kGpuTestingDeviceId),
+        device_id);
+}
+
 }  // namespace gpu