Move a bunch of code in content\common (as well as a few left in renderer) to the content namespace.

content/common/database_util.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/common/database_util.h"
 
 #include "content/common/child_thread.h"
 #include "content/common/database_messages.h"
 #include "ipc/ipc_sync_message_filter.h"
 #include "third_party/sqlite/sqlite3.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/platform/WebString.h"
 
 using WebKit::WebKitPlatformSupport;
 using WebKit::WebString;
 
+namespace content {
+
 WebKitPlatformSupport::FileHandle DatabaseUtil::DatabaseOpenFile(
     const WebString& vfs_file_name, int desired_flags) {
   IPC::PlatformFileForTransit file_handle =
       IPC::InvalidPlatformFileForTransit();
 
   scoped_refptr<IPC::SyncMessageFilter> filter(
       ChildThread::current()->sync_message_filter());
   filter->Send(new DatabaseHostMsg_OpenFile(
       vfs_file_name, desired_flags, &file_handle));
 
@@ skipping 27 matching lines @@
 }
 
 long long DatabaseUtil::DatabaseGetSpaceAvailable(
     const WebString& origin_identifier) {
   int64 rv = 0LL;
   scoped_refptr<IPC::SyncMessageFilter> filter(
       ChildThread::current()->sync_message_filter());
   filter->Send(new DatabaseHostMsg_GetSpaceAvailable(origin_identifier, &rv));
   return rv;
 }
+
+}  // namespace content