Add a placeholder file for ARM64 Row Neon implementation

BUG=319
TEST=libyuv_unittest
R=fbarchard@google.com

Change-Id: I9fdc355d285062d32c11dba4e240d32f5b1bcb80
Signed-off-by: Ashok Bhat <ashok.bhat@arm.com>

Review URL: https://webrtc-codereview.appspot.com/16249004

Review URL: https://webrtc-codereview.appspot.com/16249004

git-svn-id: http://libyuv.googlecode.com/svn/trunk@1041 16f28f9a-4ce2-e073-06de-1de4eb20be90

README.chromium

 Name: libyuv
 URL: http://code.google.com/p/libyuv/
-Version: 1040
+Version: 1041
 License: BSD
 License File: LICENSE
 

include/libyuv/row.h

@@ -250,6 +250,10 @@ extern "C" {
 #define HAS_MIRRORROW_SSE2
 #endif
 
+// The following are available on arm64 platforms:
+#if !defined(LIBYUV_DISABLE_NEON) && defined(__aarch64__)
+#endif
+
 // The following are available on Neon platforms:
 #if !defined(LIBYUV_DISABLE_NEON) && \
     (defined(__ARM_NEON__) || defined(LIBYUV_NEON))

include/libyuv/version.h

@@ -11,6 +11,6 @@
 #ifndef INCLUDE_LIBYUV_VERSION_H_  // NOLINT
 #define INCLUDE_LIBYUV_VERSION_H_
 
-#define LIBYUV_VERSION 1040
+#define LIBYUV_VERSION 1041
 
 #endif  // INCLUDE_LIBYUV_VERSION_H_  NOLINT

libyuv.gyp

@@ -53,6 +53,7 @@
             'source/compare_neon.cc',
             'source/rotate_neon.cc',
             'source/row_neon.cc',
+            'source/row_neon64.cc',
             'source/scale_neon.cc',
           ],
         },