Rewrite scoped_ptr<T>(NULL) to use the default ctor in content/.

content/public/test/test_renderer_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/public/test/test_renderer_host.h"
 
 #include "base/run_loop.h"
 #include "content/browser/renderer_host/render_view_host_factory.h"
 #include "content/browser/renderer_host/render_widget_host_impl.h"
 #include "content/browser/renderer_host/test_render_view_host.h"
@@ skipping 56 matching lines @@
       rvh_factory_(new TestRenderViewHostFactory(rph_factory_.get())) {
 }
 
 RenderViewHostTestEnabler::~RenderViewHostTestEnabler() {
 }
 
 
 // RenderViewHostTestHarness --------------------------------------------------
 
 RenderViewHostTestHarness::RenderViewHostTestHarness()
-  : contents_(NULL),
-    thread_bundle_options_(TestBrowserThreadBundle::DEFAULT) {
-}
+    : thread_bundle_options_(TestBrowserThreadBundle::DEFAULT) {}
 
 RenderViewHostTestHarness::~RenderViewHostTestHarness() {
 }
 
 NavigationController& RenderViewHostTestHarness::controller() {
   return web_contents()->GetController();
 }
 
 WebContents* RenderViewHostTestHarness::web_contents() {
   return contents_.get();
@@ skipping 107 matching lines @@
                             browser_context_.release());
   thread_bundle_.reset();
 }
 
 void RenderViewHostTestHarness::SetRenderProcessHostFactory(
     RenderProcessHostFactory* factory) {
     rvh_test_enabler_.rvh_factory_->set_render_process_host_factory(factory);
 }
 
 }  // namespace content