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

content/common/indexed_db/proxy_webidbcursor_impl.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/common/indexed_db/proxy_webidbcursor_impl.h"
 
 #include <vector>
 
 #include "content/common/child_thread.h"
 #include "content/common/indexed_db/indexed_db_messages.h"
 #include "content/common/indexed_db/indexed_db_dispatcher.h"
 
-using content::IndexedDBKey;
-using content::SerializedScriptValue;
 using WebKit::WebExceptionCode;
 using WebKit::WebIDBCallbacks;
 using WebKit::WebIDBKey;
 using WebKit::WebSerializedScriptValue;
 
+namespace content {
+
 RendererWebIDBCursorImpl::RendererWebIDBCursorImpl(int32 idb_cursor_id)
     : idb_cursor_id_(idb_cursor_id),
       continue_count_(0),
       used_prefetches_(0),
       pending_onsuccess_callbacks_(0),
       prefetch_amount_(kMinPrefetchAmount) {
 }
 
 RendererWebIDBCursorImpl::~RendererWebIDBCursorImpl() {
   // It's not possible for there to be pending callbacks that address this
@@ skipping 123 matching lines @@
       IndexedDBDispatcher::ThreadSpecificInstance();
   dispatcher->RequestIDBCursorPrefetchReset(used_prefetches_,
                                             prefetch_keys_.size(),
                                             idb_cursor_id_);
   prefetch_keys_.clear();
   prefetch_primary_keys_.clear();
   prefetch_values_.clear();
 
   pending_onsuccess_callbacks_ = 0;
 }
+
+}  // namespace content