Change gflags and gmock includes to be full paths.

This will fix PRESUBMIT warnings developers will get due to
r7014 and r7020.

Also some minor style cleanup in:
webrtc/modules/audio_coding/main/test/RTPFile.cc
webrtc/modules/audio_coding/neteq/test/RTPjitter.cc

BUG=
R=henrik.lundin@webrtc.org, niklas.enbom@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/23429004

git-svn-id: http://webrtc.googlecode.com/svn/trunk@7058 4adac7df-926f-26a2-2b94-8c16560cd09d
diff --git a/webrtc/modules/audio_coding/main/test/RTPFile.cc b/webrtc/modules/audio_coding/main/test/RTPFile.cc
index 5c04465..789dc1d 100644
--- a/webrtc/modules/audio_coding/main/test/RTPFile.cc
+++ b/webrtc/modules/audio_coding/main/test/RTPFile.cc
@@ -20,8 +20,9 @@
 
 #include "audio_coding_module.h"
 #include "engine_configurations.h"
-#include "gtest/gtest.h" // TODO (tlegrand): Consider removing usage of gtest.
 #include "rw_lock_wrapper.h"
+// TODO(tlegrand): Consider removing usage of gtest.
+#include "testing/gtest/include/gtest/gtest.h"
 
 namespace webrtc {