Port folder renaming changes from AOM

Manually cherry-picked commits:
ceef058 libvpx->libaom part2
3d26d91 libvpx -> libaom
cfea7dd vp10/ -> av1/
3a8eff7 Fix a build issue for a test
bf4202e Rename vpx to aom

Change-Id: I1b0eb5a40796e3aaf41c58984b4229a439a597dc
diff --git a/test/yuv_video_source.h b/test/yuv_video_source.h
index 2cc81a0..33a31d4 100644
--- a/test/yuv_video_source.h
+++ b/test/yuv_video_source.h
@@ -15,9 +15,9 @@
 #include <string>
 
 #include "test/video_source.h"
-#include "vpx/vpx_image.h"
+#include "aom/vpx_image.h"
 
-namespace libvpx_test {
+namespace libaom_test {
 
 // This class extends VideoSource to allow parsing of raw YUV
 // formats of various color sampling and bit-depths so that we can
@@ -119,6 +119,6 @@
   int framerate_denominator_;
 };
 
-}  // namespace libvpx_test
+}  // namespace libaom_test
 
 #endif  // TEST_YUV_VIDEO_SOURCE_H_