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

webrtc/examples/android/media_demo/jni/jni_helpers.h

 /*
  *  Copyright (c) 2013 The WebRTC project authors. All Rights Reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
@@ skipping 33 matching lines @@
       CHECK(0, msg);              \
     }                             \
   }
 
 // JNIEnv-helper methods that CHECK success: no Java exception thrown and found
 // object/class/method/field is non-null.
 jmethodID GetMethodID(JNIEnv* jni, jclass c, const std::string& name,
                       const char* signature);
 
 // Return a |jlong| that will automatically convert back to |ptr| when assigned
-// to a |uint64|
+// to a |uint64_t|
 jlong jlongFromPointer(void* ptr);
 
 // Given a (UTF-16) jstring return a new UTF-8 native string.
 std::string JavaToStdString(JNIEnv* jni, const jstring& j_string);
 
 // Android's FindClass() is trickier than usual because the app-specific
 // ClassLoader is not consulted when there is no app-specific frame on the
 // stack.  Consequently, we only look up classes once in JNI_OnLoad.
 // http://developer.android.com/training/articles/perf-jni.html#faq_FindClass
 class ClassReferenceHolder {
  public:
   ClassReferenceHolder(JNIEnv* jni, const char** classes, int size);
   ~ClassReferenceHolder();
 
   void FreeReferences(JNIEnv* jni);
 
   jclass GetClass(const std::string& name);
 
  private:
   void LoadClass(JNIEnv* jni, const std::string& name);
 
   std::map<std::string, jclass> classes_;
 };
 
 #endif  // WEBRTC_EXAMPLES_ANDROID_MEDIA_DEMO_JNI_JNI_HELPERS_H_