Introducing 2 usages for SwiftShader

content/browser/gpu/gpu_process_host.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 "content/browser/gpu/gpu_process_host.h"
 
 #include <stddef.h>
 
 #include <algorithm>
 #include <list>
@@ skipping 1021 matching lines @@
   cmd_line->CopySwitchesFrom(
       browser_command_line, switches::kGLSwitchesCopiedFromGpuProcessHost,
       switches::kGLSwitchesCopiedFromGpuProcessHostNumSwitches);
 
   GetContentClient()->browser()->AppendExtraCommandLineSwitches(
       cmd_line.get(), process_->GetData().id);
 
   GpuDataManagerImpl::GetInstance()->AppendGpuCommandLine(cmd_line.get(),
                                                           gpu_preferences);
   if (cmd_line->HasSwitch(switches::kUseGL)) {
-    swiftshader_rendering_ =
-        (cmd_line->GetSwitchValueASCII(switches::kUseGL) == "swiftshader");
+    swiftshader_rendering_ = (cmd_line->GetSwitchValueASCII(switches::kUseGL) ==
+                              gl::kGLImplementationSwiftShaderForWebGLName);
   }
 
   bool current_gpu_type_enabled =
       swiftshader_rendering_ ? gpu_enabled_ : hardware_gpu_enabled_;
   if (!current_gpu_type_enabled) {
     SendOutstandingReplies();
     return false;
   }
 
   UMA_HISTOGRAM_BOOLEAN("GPU.GPUProcessSoftwareRendering",
@@ skipping 142 matching lines @@
       GetShaderCacheFactorySingleton()->Get(client_id);
   if (!cache.get())
     return;
 
   cache->set_shader_loaded_callback(base::Bind(&HostLoadedShader, host_id_));
 
   client_id_to_shader_cache_[client_id] = cache;
 }
 
 }  // namespace content