Catch utility process StartBatchMode failures
BUG=472180
Review URL: https://codereview.chromium.org/1041043008
Cr-Commit-Position: refs/heads/master@{#323154}
diff --git a/chrome/browser/image_decoder.h b/chrome/browser/image_decoder.h
index d4615cf..438622c4 100644
--- a/chrome/browser/image_decoder.h
+++ b/chrome/browser/image_decoder.h
@@ -85,7 +85,8 @@
~ImageDecoder() override;
// Sends a request to the sandboxed process to decode the image. Starts
- // batch mode if necessary.
+ // batch mode if necessary. If the utility process fails to start,
+ // an OnDecodeImageFailed task is posted to image_request's |task_runner_|.
void DecodeImageInSandbox(ImageRequest* image_request,
const std::vector<unsigned char>& image_data,
ImageCodec image_codec,
@@ -96,6 +97,8 @@
using RequestMap = std::map<int, ImageRequest*>;
// Starts UtilityProcessHost in batch mode and starts |batch_mode_timer_|.
+ // If the utility process fails to start, the method resets
+ // |utility_process_host_| and returns.
void StartBatchMode();
// Stops batch mode if no requests have come in since
