Added DownloadItem::Observer to JobController.

content/browser/background_fetch/background_fetch_context.cc

Index: content/browser/background_fetch/background_fetch_context.cc
diff --git a/content/browser/background_fetch/background_fetch_context.cc b/content/browser/background_fetch/background_fetch_context.cc
index ce0b6e5e385b3a6d3aaf4a1820b38ceb91e5ff4c..339cba7e80abd6e9e457dcd36e935a29b647a450 100644
--- a/content/browser/background_fetch/background_fetch_context.cc
+++ b/content/browser/background_fetch/background_fetch_context.cc
@@ -34,8 +34,6 @@ BackgroundFetchContext::~BackgroundFetchContext() {
 
 void BackgroundFetchContext::Init() {
   DCHECK_CURRENTLY_ON(BrowserThread::UI);
-
-  // TODO(harkness): Create the Download observer.
 }
 
 void BackgroundFetchContext::Shutdown() {
@@ -55,6 +53,17 @@ void BackgroundFetchContext::ShutdownOnIO() {
     job.second->Shutdown();
 }
 
+void BackgroundFetchContext::JobComplete(const std::string& job_guid) {
+  DCHECK(job_map_.find(job_guid) != job_map_.end());
+
+  // TODO(harkness): Get enough data to send the response back to the caller.
+
+  job_map_.erase(job_guid);
+
+  // TODO(harkness): Once the caller receives the message, inform the
+  // DataManager that it can clean up the pending job.
+}
+
 void BackgroundFetchContext::CreateRequest(
     const BackgroundFetchJobInfo& job_info,
     std::vector<BackgroundFetchRequestInfo>& request_infos) {