Update webrtc&libjingle 6774:6825.

content/renderer/media/rtc_data_channel_handler.cc

Index: content/renderer/media/rtc_data_channel_handler.cc
===================================================================
--- content/renderer/media/rtc_data_channel_handler.cc	(revision 287594)
+++ content/renderer/media/rtc_data_channel_handler.cc	(working copy)
@@ -103,14 +103,14 @@
 
 bool RtcDataChannelHandler::sendStringData(const blink::WebString& data) {
   std::string utf8_buffer = base::UTF16ToUTF8(data);
-  talk_base::Buffer buffer(utf8_buffer.c_str(), utf8_buffer.length());
+  rtc::Buffer buffer(utf8_buffer.c_str(), utf8_buffer.length());
   webrtc::DataBuffer data_buffer(buffer, false);
   RecordMessageSent(data_buffer.size());
   return channel_->Send(data_buffer);
 }
 
 bool RtcDataChannelHandler::sendRawData(const char* data, size_t length) {
-  talk_base::Buffer buffer(data, length);
+  rtc::Buffer buffer(data, length);
   webrtc::DataBuffer data_buffer(buffer, true);
   RecordMessageSent(data_buffer.size());
   return channel_->Send(data_buffer);