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/neteq/expand_unittest.cc b/webrtc/modules/audio_coding/neteq/expand_unittest.cc
index bd39f40..68b4f60 100644
--- a/webrtc/modules/audio_coding/neteq/expand_unittest.cc
+++ b/webrtc/modules/audio_coding/neteq/expand_unittest.cc
@@ -12,7 +12,7 @@
 
 #include "webrtc/modules/audio_coding/neteq/expand.h"
 
-#include "gtest/gtest.h"
+#include "testing/gtest/include/gtest/gtest.h"
 #include "webrtc/modules/audio_coding/neteq/background_noise.h"
 #include "webrtc/modules/audio_coding/neteq/random_vector.h"
 #include "webrtc/modules/audio_coding/neteq/sync_buffer.h"