Show download error message if sdcard is not available

chrome/browser/android/download/download_manager_service.cc

Index: chrome/browser/android/download/download_manager_service.cc
diff --git a/chrome/browser/android/download/download_manager_service.cc b/chrome/browser/android/download/download_manager_service.cc
index 3c410a414ef7fe62c03ad89b921406593510e8ad..abc4f347913527b4e823dd7355433c54b50353e4 100644
--- a/chrome/browser/android/download/download_manager_service.cc
+++ b/chrome/browser/android/download/download_manager_service.cc
@@ -4,6 +4,7 @@
 
 #include "chrome/browser/android/download/download_manager_service.h"
 
+#include "base/android/context_utils.h"
 #include "base/android/jni_string.h"
 #include "base/location.h"
 #include "base/single_thread_task_runner.h"
@@ -28,6 +29,23 @@ bool DownloadManagerService::RegisterDownloadManagerService(JNIEnv* env) {
   return RegisterNativesImpl(env);
 }
 
+// static
+void DownloadManagerService::OnDownloadCanceled(
+    content::DownloadItem* download,
+    DownloadController::DownloadCancelReason reason) {
+  JNIEnv* env = base::android::AttachCurrentThread();
+  ScopedJavaLocalRef<jobject> download_manager =
+      Java_DownloadManagerService_getDownloadManagerService(
+          env, base::android::GetApplicationContext());
+  ScopedJavaLocalRef<jstring> jname =
+      ConvertUTF8ToJavaString(env, download->GetURL().ExtractFileName());
+  Java_DownloadManagerService_onDownloadCanceled(
+      env, download_manager.obj(), jname.obj(),
+      reason == DownloadController::CANCEL_REASON_NO_EXTERNAL_STORAGE);
+  DownloadController::RecordDownloadCancelReason(reason);
+}
+
+
 static jlong Init(JNIEnv* env, const JavaParamRef<jobject>& jobj) {
   Profile* profile = ProfileManager::GetActiveUserProfile();
   DownloadManagerService* service =