content: Use base::MessageLoop.

content/shell/shell_browser_main.cc

Index: content/shell/shell_browser_main.cc
diff --git a/content/shell/shell_browser_main.cc b/content/shell/shell_browser_main.cc
index 595999af840ce906d7c47f9b71d1c435a9b525f8..e6e45c3ed46a54e89f9fdcdfe7a247b05fb29cf8 100644
--- a/content/shell/shell_browser_main.cc
+++ b/content/shell/shell_browser_main.cc
@@ -120,7 +120,8 @@ int ShellBrowserMain(const content::MainFunctionParams& parameters) {
 
   if (CommandLine::ForCurrentProcess()->HasSwitch(
         switches::kCheckLayoutTestSysDeps)) {
-    MessageLoop::current()->PostTask(FROM_HERE, MessageLoop::QuitClosure());
+    base::MessageLoop::current()->PostTask(FROM_HERE,
+                                           base::MessageLoop::QuitClosure());
     main_runner_->Run();
     content::Shell::CloseAllWindows();
     main_runner_->Shutdown();
@@ -170,7 +171,8 @@ int ShellBrowserMain(const content::MainFunctionParams& parameters) {
         break;
     }
     if (!ran_at_least_once) {
-      MessageLoop::current()->PostTask(FROM_HERE, MessageLoop::QuitClosure());
+      base::MessageLoop::current()->PostTask(FROM_HERE,
+                                             base::MessageLoop::QuitClosure());
       main_runner_->Run();
     }
     exit_code = 0;