Add a name to the proxy resolver utility process and display it in the task manager.

content/browser/utility_process_host_impl.h

Index: content/browser/utility_process_host_impl.h
diff --git a/content/browser/utility_process_host_impl.h b/content/browser/utility_process_host_impl.h
index 00b72e0cbc5a5db29ca7246e2b3559d20a5a603f..37da34b13caf7bc560b94255f7c5186b2ee15916 100644
--- a/content/browser/utility_process_host_impl.h
+++ b/content/browser/utility_process_host_impl.h
@@ -57,6 +57,7 @@ class CONTENT_EXPORT UtilityProcessHostImpl
 #endif
   bool StartMojoMode() override;
   ServiceRegistry* GetServiceRegistry() override;
+  void SetName(const std::string& name) override;
 
   void set_child_flags(int flags) { child_flags_ = flags; }
 
@@ -97,6 +98,10 @@ class CONTENT_EXPORT UtilityProcessHostImpl
 
   bool started_;
 
+  // A user-visible name identifying this process. Used to indentify this
+  // process in the task manager.
+  std::string name_;
+
   scoped_ptr<BrowserChildProcessHostImpl> process_;
 
   // Used in single-process mode instead of process_.