Bump version to 2.7.2 + update release notes

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=190941619

RELEASENOTES.md

@@ -2,13 +2,9 @@
 
 ### dev-v2 (not yet released) ###
 
-* Gradle: Upgrade Gradle version from 4.1 to 4.4 so it can work with Android
-  Studio 3.1 ([#3708](https://github.com/google/ExoPlayer/issues/3708)).
 * Optimize seeking in FMP4 by enabling seeking to the nearest sync sample within
   a fragment. This benefits standalone FMP4 playbacks, DASH and SmoothStreaming.
 * Optimize seeking in FMP4.
-* Match codecs starting with "mp4a" to different Audio MimeTypes
-  ([#3779](https://github.com/google/ExoPlayer/issues/3779)).
 * Moved initial bitrate estimate from `AdaptiveTrackSelection` to
   `DefaultBandwidthMeter`.
 * Updated default max buffer length in `DefaultLoadControl`.
@@ -48,17 +44,26 @@
 * DRM:
   * Allow multiple listeners for `DefaultDrmSessionManager`.
   * Pass `DrmSessionManager` to `ExoPlayerFactory` instead of `RendererFactory`.
-* Fix "Decoder input buffer too small" error when playing some FLAC streams.
-* Fix handling of zero padded strings when parsing Matroska streams
-  ([#4010](https://github.com/google/ExoPlayer/issues/4010)).
-* Fix ANR issue on Redmi 4X and Redmi Note 4
-  ([#4006](https://github.com/google/ExoPlayer/issues/4006)).
 * Removed default renderer time offset of 60000000 from internal player. The
   actual renderer timestamp offset can be obtained by listening to
   `BaseRenderer.onStreamChanged`.
 * HLS: Fix playlist loading error propagation when the current selection does
   not include all of the playlist's variants.
 
+### 2.7.2 ###
+
+* Gradle: Upgrade Gradle version from 4.1 to 4.4 so it can work with Android
+  Studio 3.1 ([#3708](https://github.com/google/ExoPlayer/issues/3708)).
+* Match codecs starting with "mp4a" to different Audio MimeTypes
+  ([#3779](https://github.com/google/ExoPlayer/issues/3779)).
+* Fix ANR issue on Redmi 4X and Redmi Note 4
+  ([#4006](https://github.com/google/ExoPlayer/issues/4006)).
+* Fix handling of zero padded strings when parsing Matroska streams
+  ([#4010](https://github.com/google/ExoPlayer/issues/4010)).
+* Fix "Decoder input buffer too small" error when playing some FLAC streams.
+* MediaSession extension: Omit fast forward and rewind actions when media is not
+  seekable ([#4001](https://github.com/google/ExoPlayer/issues/4001)).
+
 ### 2.7.1 ###
 
 * Gradle: Replaced 'compile' (deprecated) with 'implementation' and

constants.gradle

@@ -13,8 +13,8 @@
 // limitations under the License.
 project.ext {
     // ExoPlayer version and version code.
-    releaseVersion = '2.7.1'
-    releaseVersionCode = 2701
+    releaseVersion = '2.7.2'
+    releaseVersionCode = 2702
     // Important: ExoPlayer specifies a minSdkVersion of 14 because various
     // components provided by the library may be of use on older devices.
     // However, please note that the core media playback functionality provided

library/core/src/main/java/com/google/android/exoplayer2/ExoPlayerLibraryInfo.java

@@ -29,11 +29,11 @@ public final class ExoPlayerLibraryInfo {
 
   /** The version of the library expressed as a string, for example "1.2.3". */
   // Intentionally hardcoded. Do not derive from other constants (e.g. VERSION_INT) or vice versa.
-  public static final String VERSION = "2.7.1";
+  public static final String VERSION = "2.7.2";
 
   /** The version of the library expressed as {@code "ExoPlayerLib/" + VERSION}. */
   // Intentionally hardcoded. Do not derive from other constants (e.g. VERSION) or vice versa.
-  public static final String VERSION_SLASHY = "ExoPlayerLib/2.7.1";
+  public static final String VERSION_SLASHY = "ExoPlayerLib/2.7.2";
 
   /**
    * The version of the library expressed as an integer, for example 1002003.
@@ -43,7 +43,7 @@ public final class ExoPlayerLibraryInfo {
    * integer version 123045006 (123-045-006).
    */
   // Intentionally hardcoded. Do not derive from other constants (e.g. VERSION) or vice versa.
-  public static final int VERSION_INT = 2007001;
+  public static final int VERSION_INT = 2007002;
 
   /**
    * Whether the library was compiled with {@link com.google.android.exoplayer2.util.Assertions}