Introducing 2 usages for SwiftShader

gpu/config/gpu_info_collector_win.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"
 
 // This has to be included before windows.h.
 #include "third_party/re2/src/re2/re2.h"
 
 #include <windows.h>
@@ skipping 234 matching lines @@
 
 CollectInfoResult CollectContextGraphicsInfo(GPUInfo* gpu_info) {
   TRACE_EVENT0("gpu", "CollectGraphicsInfo");
 
   DCHECK(gpu_info);
 
   if (base::CommandLine::ForCurrentProcess()->HasSwitch(switches::kUseGL)) {
     std::string requested_implementation_name =
         base::CommandLine::ForCurrentProcess()->GetSwitchValueASCII(
             switches::kUseGL);
-    if (requested_implementation_name == "swiftshader") {
+    if (requested_implementation_name ==
+        gl::kGLImplementationSwiftShaderForWebGLName) {
       gpu_info->software_rendering = true;
       gpu_info->context_info_state = kCollectInfoNonFatalFailure;
       return kCollectInfoNonFatalFailure;
     }
   }
 
   CollectInfoResult result = CollectGraphicsInfoGL(gpu_info);
   if (result != kCollectInfoSuccess) {
     gpu_info->context_info_state = result;
     return result;
@@ skipping 162 matching lines @@
   }
 
   MergeGPUInfoGL(basic_gpu_info, context_gpu_info);
 
   basic_gpu_info->dx_diagnostics_info_state =
       context_gpu_info.dx_diagnostics_info_state;
   basic_gpu_info->dx_diagnostics = context_gpu_info.dx_diagnostics;
 }
 
 }  // namespace gpu