Improve multi-process debugging.

mojo/shell/context.cc

 // Copyright 2013 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 "mojo/shell/context.h"
 
 #include <vector>
 
-#include "base/base_switches.h"
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/files/file_path.h"
 #include "base/lazy_instance.h"
 #include "base/macros.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/scoped_vector.h"
 #include "base/path_service.h"
 #include "base/run_loop.h"
 #include "base/strings/string_split.h"
@@ skipping 211 matching lines @@
 
 GURL Context::ResolveCommandLineURL(const std::string& path) {
   return command_line_cwd_.Resolve(path);
 }
 
 bool Context::Init() {
   TRACE_EVENT0("mojo_shell", "Context::Init");
   const base::CommandLine& command_line =
       *base::CommandLine::ForCurrentProcess();
 
-  if (command_line.HasSwitch(switches::kWaitForDebugger))
-    base::debug::WaitForDebugger(60, true);
-
   EnsureEmbedderIsInitialized();
   task_runners_.reset(
       new TaskRunners(base::MessageLoop::current()->message_loop_proxy()));
 
   // TODO(vtl): Probably these failures should be checked before |Init()|, and
   // this function simply shouldn't fail.
   if (!shell_file_root_.is_valid())
     return false;
   if (!ConfigureURLMappings(command_line, this))
     return false;
@@ skipping 65 matching lines @@
     if (app_urls_.empty() && base::MessageLoop::current()->is_running()) {
       DCHECK_EQ(base::MessageLoop::current()->task_runner(),
                 task_runners_->shell_runner());
       base::MessageLoop::current()->Quit();
     }
   }
 }
 
 }  // namespace shell
 }  // namespace mojo