Instrument CronetUrlRequestTest#testThrowOrCancelInOnCanceled flaky test

components/cronet/android/test/javatests/src/org/chromium/net/UploadDataProvidersTest.java

Index: components/cronet/android/test/javatests/src/org/chromium/net/UploadDataProvidersTest.java
diff --git a/components/cronet/android/test/javatests/src/org/chromium/net/UploadDataProvidersTest.java b/components/cronet/android/test/javatests/src/org/chromium/net/UploadDataProvidersTest.java
index bc83435edc932d524188f86816e2d42b9baa7fb5..e5f80556412e41b606b29e306a8fdd7878ae743f 100644
--- a/components/cronet/android/test/javatests/src/org/chromium/net/UploadDataProvidersTest.java
+++ b/components/cronet/android/test/javatests/src/org/chromium/net/UploadDataProvidersTest.java
@@ -200,8 +200,8 @@ public class UploadDataProvidersTest extends CronetTestBase {
         assertFalse(callback.mOnCanceledCalled);
         assertEquals(UrlRequestException.ERROR_LISTENER_EXCEPTION_THROWN,
                 callback.mError.getErrorCode());
-        assertEquals("Exception received from UploadDataProvider", callback.mError.getMessage());
-        assertEquals(exceptionMessage, callback.mError.getCause().getMessage());
+        assertContains("Exception received from UploadDataProvider", callback.mError.getMessage());
+        assertContains(exceptionMessage, callback.mError.getCause().getMessage());
     }
 
     @SmallTest