Update cbcs encryption version check for clarity.

media/base/android/java/src/org/chromium/media/MediaCodecUtil.java

Index: media/base/android/java/src/org/chromium/media/MediaCodecUtil.java
diff --git a/media/base/android/java/src/org/chromium/media/MediaCodecUtil.java b/media/base/android/java/src/org/chromium/media/MediaCodecUtil.java
index f2703e1fbe5c9572a0df9da49d21359bb108af58..9baeee1370942d6fbd6ed5c02585ef446e13808e 100644
--- a/media/base/android/java/src/org/chromium/media/MediaCodecUtil.java
+++ b/media/base/android/java/src/org/chromium/media/MediaCodecUtil.java
@@ -625,10 +625,10 @@ class MediaCodecUtil {
      * encryption scheme, specifically AES CBC encryption with possibility of pattern
      * encryption.
      * While 'cbcs' scheme was originally implemented in N, there was a bug (in the
-     * DRM code) which means that it didn't really work properly until post-N).
+     * DRM code) which means that it didn't really work properly until N-MR1).

[ddorwin, 2017/05/25 17:36:28]

Was the bug in the OS or the Widevine MediaDrm plugin? We might be more specific
here.

      */
     static boolean platformSupportsCbcsEncryption() {
-        return Build.VERSION.SDK_INT > Build.VERSION_CODES.N;
+        return Build.VERSION.SDK_INT >= Build.VERSION_CODES.N_MR1;
     }
 
     /**