CastContentBrowserClient should not hold CastBrowserMainParts lifetime.

chromecast/shell/browser/cast_content_browser_client.cc

 // Copyright 2014 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 "chromecast/shell/browser/cast_content_browser_client.h"
 
 #include "base/command_line.h"
 #include "chromecast/shell/browser/cast_browser_context.h"
 #include "chromecast/shell/browser/cast_browser_main_parts.h"
 #include "chromecast/shell/browser/geolocation/cast_access_token_store.h"
@@ skipping 10 matching lines @@
 
 CastContentBrowserClient::CastContentBrowserClient()
     : url_request_context_factory_(new URLRequestContextFactory()) {
 }
 
 CastContentBrowserClient::~CastContentBrowserClient() {
 }
 
 content::BrowserMainParts* CastContentBrowserClient::CreateBrowserMainParts(
     const content::MainFunctionParams& parameters) {
-  shell_browser_main_parts_.reset(
-      new CastBrowserMainParts(parameters, url_request_context_factory_.get()));
-  return shell_browser_main_parts_.get();
+  shell_browser_main_parts_ =
+      new CastBrowserMainParts(parameters, url_request_context_factory_.get());
+  return shell_browser_main_parts_;
 }
 
 void CastContentBrowserClient::RenderProcessWillLaunch(
     content::RenderProcessHost* host) {
 }
 
 net::URLRequestContextGetter* CastContentBrowserClient::CreateRequestContext(
     content::BrowserContext* browser_context,
     content::ProtocolHandlerMap* protocol_handlers,
     content::URLRequestInterceptorScopedVector request_interceptors) {
@@ skipping 93 matching lines @@
 }
 
 void CastContentBrowserClient::GetAdditionalMappedFilesForChildProcess(
     const base::CommandLine& command_line,
     int child_process_id,
     std::vector<content::FileDescriptorInfo>* mappings) {
 }
 
 }  // namespace shell
 }  // namespace chromecast