base->rtc_base: Update .c, .mm and .java files.

TBR=kwiberg@webrtc.org
BUG=webrtc:7634

Review-Url: https://codereview.webrtc.org/2974613003
Cr-Commit-Position: refs/heads/master@{#18926}
diff --git a/webrtc/common_audio/signal_processing/downsample_fast.c b/webrtc/common_audio/signal_processing/downsample_fast.c
index 3cbc3c1..90de156 100644
--- a/webrtc/common_audio/signal_processing/downsample_fast.c
+++ b/webrtc/common_audio/signal_processing/downsample_fast.c
@@ -10,8 +10,8 @@
 
 #include "webrtc/common_audio/signal_processing/include/signal_processing_library.h"
 
-#include "webrtc/base/checks.h"
-#include "webrtc/base/sanitizer.h"
+#include "webrtc/rtc_base/checks.h"
+#include "webrtc/rtc_base/sanitizer.h"
 
 // TODO(Bjornv): Change the function parameter order to WebRTC code style.
 // C version of WebRtcSpl_DownsampleFast() for generic platforms.