Add a way to send the resource percentage signal to the RC.

components/offline_pages/core/background/offliner_stub.cc

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "components/offline_pages/core/background/offliner_stub.h"
 
 #include "base/bind.h"
 #include "base/threading/thread_task_runner_handle.h"
 #include "components/offline_pages/core/background/save_page_request.h"
 
 namespace offline_pages {
 
 OfflinerStub::OfflinerStub()
     : disable_loading_(false),
       enable_callback_(false),
       cancel_called_(false),
-      snapshot_on_last_retry_(false) {}
+      snapshot_on_last_retry_(false),
+      started_count_(0LL),
+      completed_count_(0LL) {}
 
 OfflinerStub::~OfflinerStub() {}
 
 bool OfflinerStub::LoadAndSave(const SavePageRequest& request,
                                const CompletionCallback& completion_callback,
                                const ProgressCallback& progress_callback) {
   if (disable_loading_)
     return false;
 
   pending_request_.reset(new SavePageRequest(request));
@@ skipping 25 matching lines @@
 bool OfflinerStub::HandleTimeout(int64_t request_id) {
   if (snapshot_on_last_retry_) {
     base::ThreadTaskRunnerHandle::Get()->PostTask(FROM_HERE,
                                                   completion_callback_);
     pending_request_.reset();
     return true;
   }
   return false;
 }
 
+void OfflinerStub::ObserveResourceTracking(ResourceDataType type,
+                                           int64_t started_count,
+                                           int64_t completed_count) {
+  started_count_ = started_count;
+  completed_count_ = completed_count;
+}
+
+// Returns the most recently seen counts for a specific resource type.
+// TODO(petewil): Today this just supports images, later support all types.
+void OfflinerStub::GetResourcePercentageCounts(const ResourceDataType type,
+                                               int64_t* started,
+                                               int64_t* completed) {
+  if (type == ResourceDataType::IMAGE) {
+    if (started)
+      *started = started_count_;
+    if (completed)
+      *completed = completed_count_;
+  }
+}
+
 }  // namespace offline_pages