Switch to Cronet 55_0_2860_0

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=133850026

extensions/cronet/src/androidTest/java/com/google/android/exoplayer2/ext/cronet/CronetDataSourceTest.java

@@ -100,7 +100,8 @@ public final class CronetDataSourceTest {
         Executor executor, int priority,
         Collection<Object> connectionAnnotations,
         boolean disableCache,
-        boolean disableConnectionMigration);
+        boolean disableConnectionMigration,
+        boolean allowDirectExecutor);
   }
 
   @Mock
@@ -143,6 +144,7 @@ public final class CronetDataSourceTest {
         anyInt(),
         eq(Collections.emptyList()),
         any(Boolean.class),
+        any(Boolean.class),
         any(Boolean.class))).thenReturn(mockUrlRequest);
     mockStatusResponse();
 
@@ -194,6 +196,7 @@ public final class CronetDataSourceTest {
         anyInt(),
         eq(Collections.emptyList()),
         any(Boolean.class),
+        any(Boolean.class),
         any(Boolean.class))).thenReturn(mockUrlRequest2);
     doAnswer(new Answer<Object>() {
       @Override
@@ -224,6 +227,7 @@ public final class CronetDataSourceTest {
         anyInt(),
         eq(Collections.emptyList()),
         any(Boolean.class),
+        any(Boolean.class),
         any(Boolean.class));
     verify(mockUrlRequest).start();
   }