Changes to fit better with the needs of the download manager.

components/offline_pages/background/request_queue_in_memory_store.cc

Index: components/offline_pages/background/request_queue_in_memory_store.cc
diff --git a/components/offline_pages/background/request_queue_in_memory_store.cc b/components/offline_pages/background/request_queue_in_memory_store.cc
index 32219a91616eef459ea08ab4fb7116258f781355..07372468c41177159b378ffc155d19d9981f4d70 100644
--- a/components/offline_pages/background/request_queue_in_memory_store.cc
+++ b/components/offline_pages/background/request_queue_in_memory_store.cc
@@ -4,8 +4,6 @@
 
 #include "components/offline_pages/background/request_queue_in_memory_store.h"
 
-#include <set>
-
 #include "base/bind.h"
 #include "base/location.h"
 #include "base/threading/thread_task_runner_handle.h"
@@ -40,37 +38,22 @@ void RequestQueueInMemoryStore::AddOrUpdateRequest(
 void RequestQueueInMemoryStore::RemoveRequests(
     const std::vector<int64_t>& request_ids,
     const RemoveCallback& callback) {
-  int count = 0;
+  RequestQueue::UpdateMultipleRequestResults results;
+  RequestQueue::UpdateRequestResult result;
   RequestsMap::iterator iter;
   for (auto request_id : request_ids) {
     iter = requests_.find(request_id);
     if (iter != requests_.end()) {
       requests_.erase(iter);
-      ++count;
-    }
-  }
-
-  base::ThreadTaskRunnerHandle::Get()->PostTask(
-      FROM_HERE, base::Bind(callback, true, count));
-}
-
-void RequestQueueInMemoryStore::RemoveRequestsByClientId(
-    const std::vector<ClientId>& client_ids,
-    const RemoveCallback& callback) {
-  int count = 0;
-
-  std::set<ClientId> client_id_set(client_ids.begin(), client_ids.end());
-  for (auto iter = requests_.begin(); iter != requests_.end(); ) {
-    if (client_id_set.find(iter->second.client_id()) != client_id_set.end()) {
-      requests_.erase(iter++);
-      ++count;
+      result = RequestQueue::UpdateRequestResult::SUCCESS;
     } else {
-      ++iter;
+      result = RequestQueue::UpdateRequestResult::REQUEST_DOES_NOT_EXIST;
     }
+    results.push_back(std::make_pair(request_id, result));
   }
 
-  base::ThreadTaskRunnerHandle::Get()->PostTask(
-      FROM_HERE, base::Bind(callback, true, count));
+  base::ThreadTaskRunnerHandle::Get()->PostTask(FROM_HERE,
+                                                base::Bind(callback, results));
 }
 
 void RequestQueueInMemoryStore::Reset(const ResetCallback& callback) {