Simplify the user agent code some more since after r255534 it's not affected by the site's URL.

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"
 
 #if defined(OS_WIN)
 #include <windows.h>
 #elif defined(OS_POSIX)
 #include <utility>  // for pair<>
@@ skipping 188 matching lines @@
 #if defined(OS_WIN)
     switches::kHighDPISupport,
 #endif
     switches::kLoggingLevel,
     switches::kLogPluginMessages,
     switches::kNoSandbox,
     switches::kPluginStartupDialog,
     switches::kTestSandbox,
     switches::kTraceStartup,
     switches::kUseGL,
-    switches::kUserAgent,
   };
 
   cmd_line->CopySwitchesFrom(browser_command_line, kSwitchNames,
                              arraysize(kSwitchNames));
 
   GpuDataManagerImpl::GetInstance()->AppendPluginCommandLine(cmd_line);
 
   // If specified, prepend a launcher program to the command line.
   if (!plugin_launcher.empty())
     cmd_line->PrependWrapper(plugin_launcher);
@@ skipping 210 matching lines @@
 
 void PluginProcessHost::GetContexts(const ResourceHostMsg_Request& request,
                                     ResourceContext** resource_context,
                                     net::URLRequestContext** request_context) {
   *resource_context =
       resource_context_map_[request.origin_pid].resource_context;
   *request_context = (*resource_context)->GetRequestContext();
 }
 
 }  // namespace content