Move a bunch of code in content\renderer to the content namespace.

content/renderer/mhtml_generator.cc

 // Copyright (c) 2011 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/renderer/mhtml_generator.h"
 
 #include "base/platform_file.h"
 #include "content/common/view_messages.h"
 #include "content/renderer/render_view_impl.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/platform/WebCString.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebPageSerializer.h"
 
+namespace content {
+
 MHTMLGenerator::MHTMLGenerator(RenderViewImpl* render_view)
-    : content::RenderViewObserver(render_view),
+    : RenderViewObserver(render_view),
       file_(base::kInvalidPlatformFileValue) {
 }
 
 MHTMLGenerator::~MHTMLGenerator() {
 }
 
 // RenderViewObserver implementation:
 bool MHTMLGenerator::OnMessageReceived(const IPC::Message& message) {
   bool handled = true;
   IPC_BEGIN_MESSAGE_MAP(MHTMLGenerator, message)
@@ skipping 31 matching lines @@
         std::min(mhtml.length() - total_bytes_written, chunk_size);
     int bytes_written = base::WritePlatformFile(file_, total_bytes_written,
                                                 data + total_bytes_written,
                                                 copy_size);
     if (bytes_written == -1)
       return -1;
     total_bytes_written += bytes_written;
   }
   return total_bytes_written;
 }
+
+}  // namespace content