produce a warning if versions are slightly off.

BUG=none
TEST=none
Review URL: https://webrtc-codereview.appspot.com/796004

git-svn-id: http://libyuv.googlecode.com/svn/trunk@347 16f28f9a-4ce2-e073-06de-1de4eb20be90

README.chromium

 Name: libyuv
 URL: http://code.google.com/p/libyuv/
-Version: 345
+Version: 347
 License: BSD
 License File: LICENSE
 

include/libyuv/version.h

@@ -11,6 +11,6 @@
 #ifndef INCLUDE_LIBYUV_VERSION_H_  // NOLINT
 #define INCLUDE_LIBYUV_VERSION_H_
 
-#define LIBYUV_VERSION 345
+#define LIBYUV_VERSION 347
 
 #endif  // INCLUDE_LIBYUV_VERSION_H_  NOLINT

unit_test/version_test.cc

@@ -31,6 +31,9 @@ TEST_F(libyuvTest, TestVersion) {
   int svn_revision = atoi(ver);
   printf("LIBYUV_SVNREVISION %d\n", svn_revision);
   EXPECT_NEAR(LIBYUV_VERSION, svn_revision, 3);  // Allow version to be close.
+  if (LIBYUV_VERSION != svn_revision) {
+    printf("WARNING - Versions do not match.\n");
+  }
 #endif
 }