Cleanup namespace usage from animation to exported in platform/

Source/platform/exported/WebData.cpp

 /*
  * Copyright (C) 2009 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 15 matching lines @@
  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #include "config.h"
 #include "public/platform/WebData.h"
 
 #include "platform/SharedBuffer.h"
 
-using namespace blink;
-
 namespace blink {
 
 void WebData::reset()
 {
     m_private.reset();
 }
 
 void WebData::assign(const WebData& other)
 {
     m_private = other.m_private;
@@ skipping 28 matching lines @@
     m_private = buffer;
     return *this;
 }
 
 WebData::operator PassRefPtr<SharedBuffer>() const
 {
     return PassRefPtr<SharedBuffer>(m_private.get());
 }
 
 } // namespace blink