Use a valid /prefetch argument when launching a process.

content/browser/plugin_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/plugin_process_host.h"
 
 #include <stddef.h>
 
 #include <utility>
 #include <vector>
@@ skipping 191 matching lines @@
   base::FilePath exe_path = ChildProcessHost::GetChildPath(flags);
   if (exe_path.empty())
     return false;
 
   base::CommandLine* cmd_line = new base::CommandLine(exe_path);
   // Put the process type and plugin path first so they're easier to see
   // in process listings using native process management tools.
   cmd_line->AppendSwitchASCII(switches::kProcessType, switches::kPluginProcess);
   cmd_line->AppendSwitchPath(switches::kPluginPath, info.path);
 
+#if defined(OS_WIN)
+  if (GetContentClient()->browser()->ShouldUseWindowsPrefetchArgument())
+    cmd_line->AppendArg(switches::kPrefetchArgumentOther);
+#endif  // defined(OS_WIN)
+
   // Propagate the following switches to the plugin command line (along with
   // any associated values) if present in the browser command line
   static const char* const kSwitchNames[] = {
     switches::kDisableBreakpad,
     switches::kDisableDirectNPAPIRequests,
     switches::kEnableStatsTable,
     switches::kFullMemoryCrashReport,
     switches::kLoggingLevel,
     switches::kLogPluginMessages,
     switches::kNoSandbox,
@@ skipping 206 matching lines @@
 void PluginProcessHost::GetContexts(ResourceType resource_type,
                                     int origin_pid,
                                     ResourceContext** resource_context,
                                     net::URLRequestContext** request_context) {
   *resource_context =
       resource_context_map_[origin_pid].resource_context;
   *request_context = (*resource_context)->GetRequestContext();
 }
 
 }  // namespace content