Use suffixed {uint,int}{8,16,32,64}_t types.

talk/app/webrtc/test/mockpeerconnectionobservers.h

 /*
  * libjingle
  * Copyright 2012 Google Inc.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are met:
  *
  *  1. Redistributions of source code must retain the above copyright notice,
  *     this list of conditions and the following disclaimer.
  *  2. Redistributions in binary form must reproduce the above copyright notice,
@@ skipping 80 matching lines @@
  public:
   explicit MockDataChannelObserver(webrtc::DataChannelInterface* channel)
      : channel_(channel), received_message_count_(0) {
     channel_->RegisterObserver(this);
     state_ = channel_->state();
   }
   virtual ~MockDataChannelObserver() {
     channel_->UnregisterObserver();
   }
 
-  void OnBufferedAmountChange(uint64 previous_amount) override {}
+  void OnBufferedAmountChange(uint64_t previous_amount) override {}
 
   void OnStateChange() override { state_ = channel_->state(); }
   void OnMessage(const DataBuffer& buffer) override {
     last_message_.assign(buffer.data.data<char>(), buffer.data.size());
     ++received_message_count_;
   }
 
   bool IsOpen() const { return state_ == DataChannelInterface::kOpen; }
   const std::string& last_message() const { return last_message_; }
   size_t received_message_count() const { return received_message_count_; }
@@ skipping 122 matching lines @@
     int bytes_sent;
     int available_receive_bandwidth;
     std::string dtls_cipher;
     std::string srtp_cipher;
   } stats_;
 };
 
 }  // namespace webrtc
 
 #endif  // TALK_APP_WEBRTC_TEST_MOCKPEERCONNECTIONOBSERVERS_H_