test_runner: Move everything else into content namespace.

content/shell/renderer/test_runner/WebTestInterfaces.cpp

 // 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 "content/shell/renderer/test_runner/WebTestInterfaces.h"
 
 #include "content/shell/renderer/test_runner/MockWebAudioDevice.h"
 #include "content/shell/renderer/test_runner/MockWebMIDIAccessor.h"
 #include "content/shell/renderer/test_runner/MockWebMediaStreamCenter.h"
 #include "content/shell/renderer/test_runner/MockWebRTCPeerConnectionHandler.h"
 #include "content/shell/renderer/test_runner/TestInterfaces.h"
 #include "content/shell/renderer/test_runner/test_runner.h"
 
 using namespace blink;
-using namespace content;
 
-namespace WebTestRunner {
+namespace content {
 
 WebTestInterfaces::WebTestInterfaces()
     : m_interfaces(new TestInterfaces())
 {
 }
 
 WebTestInterfaces::~WebTestInterfaces()
 {
 }
 
@@ skipping 55 matching lines @@
 WebMIDIAccessor* WebTestInterfaces::createMIDIAccessor(WebMIDIAccessorClient* client)
 {
     return new MockWebMIDIAccessor(client, m_interfaces.get());
 }
 
 WebAudioDevice* WebTestInterfaces::createAudioDevice(double sampleRate)
 {
     return new MockWebAudioDevice(sampleRate);
 }
 
-}
+}  // namespace content