Replace basictypes.h with stdint.h for int_t types.

Removes basictypes.h for types that only makes use of it for fixed-size-int
typedefs and replaces it with stdint.h.

BUG=webrtc:6853
R=tommi@webrtc.org

Review-Url: https://codereview.webrtc.org/2604043002
Cr-Commit-Position: refs/heads/master@{#15867}

webrtc/sdk/android/src/jni/androidnetworkmonitor_jni.h

@@ -13,10 +13,11 @@
 
 #include "webrtc/base/networkmonitor.h"
 
+#include <stdint.h>
+
 #include <map>
 
 #include "webrtc/sdk/android/src/jni/jni_helpers.h"
-#include "webrtc/base/basictypes.h"
 #include "webrtc/base/thread_checker.h"
 
 namespace webrtc_jni {