[Android] Wire up manual crash uploads.

components/upload_list/upload_list.cc

Index: components/upload_list/upload_list.cc
diff --git a/components/upload_list/upload_list.cc b/components/upload_list/upload_list.cc
index 6922be55215f2605f5d9c07052157f512fb6e906..3db9e58e89451565c357660dd80298dc7d7aee84 100644
--- a/components/upload_list/upload_list.cc
+++ b/components/upload_list/upload_list.cc
@@ -139,16 +139,14 @@ void UploadList::GetUploads(size_t max_count,
 }
 
 void UploadList::RequestSingleCrashUploadAsync(const std::string& local_id) {
-#if defined(OS_WIN) || defined(OS_MACOSX)
   DCHECK(thread_checker_.CalledOnValidThread());
   worker_pool_->PostTask(
       FROM_HERE,
       base::Bind(&UploadList::RequestSingleCrashUpload, this, local_id));
-#endif
 }
 
 void UploadList::RequestSingleCrashUpload(const std::string& local_id) {
-  // Manual uploads for not uploaded crash reports are not available for non
-  // crashpad systems.
+  // Manual uploads for not yet uploaded crash reports are only available for
+  // Crashpad systems or on Android.
   NOTREACHED();
 }