vision: Got empty response when requests are gzipped. (#341)

Author: tswast

vision/label/src/main/java/com/google/cloud/vision/samples/label/LabelApp.java

@@ -129,7 +129,7 @@ public List<EntityAnnotation> labelImage(Path path, int maxResults) throws IOExc
         vision.images()
             .annotate(new BatchAnnotateImagesRequest().setRequests(ImmutableList.of(request)));
     // Due to a bug: requests to Vision API containing large images fail when GZipped.
-    // annotate.setDisableGZipContent(true);
+    annotate.setDisableGZipContent(true);
     // [END construct_request]
 
     // [START parse_response]

vision/landmark-detection/src/main/java/com/google/cloud/vision/samples/landmarkdetection/DetectLandmark.java

@@ -115,6 +115,8 @@ public List<EntityAnnotation> identifyLandmark(String uri, int maxResults) throw
     Vision.Images.Annotate annotate =
         vision.images()
             .annotate(new BatchAnnotateImagesRequest().setRequests(ImmutableList.of(request)));
+    // Due to a bug: requests to Vision API containing large images fail when GZipped.
+    annotate.setDisableGZipContent(true);
 
     BatchAnnotateImagesResponse batchResponse = annotate.execute();
     assert batchResponse.getResponses().size() == 1;