Return operation name in prefetch request callback and add internal page hookup

components/offline_pages/core/prefetch/get_operation_request.cc

Index: components/offline_pages/core/prefetch/get_operation_request.cc
diff --git a/components/offline_pages/core/prefetch/get_operation_request.cc b/components/offline_pages/core/prefetch/get_operation_request.cc
index 59865ffcd8c647026fba82468534e6180af2b465..77d2cd21873e03ed64f590eb89959b7278ebeb2f 100644
--- a/components/offline_pages/core/prefetch/get_operation_request.cc
+++ b/components/offline_pages/core/prefetch/get_operation_request.cc
@@ -15,7 +15,7 @@
 namespace offline_pages {
 
 namespace {
-const char kGetOperationURLPath[] = "v1/operations/";
+const char kGetOperationURLPath[] = "v1/";
 }  // namespace
 
 GetOperationRequest::GetOperationRequest(
@@ -38,18 +38,19 @@ GetOperationRequest::~GetOperationRequest() {}
 void GetOperationRequest::OnCompleted(PrefetchRequestStatus status,
                                       const std::string& data) {
   if (status != PrefetchRequestStatus::SUCCESS) {
-    callback_.Run(status, std::vector<RenderPageInfo>());
+    callback_.Run(status, std::string(), std::vector<RenderPageInfo>());
     return;
   }
 
   std::vector<RenderPageInfo> pages;
-  if (!ParseOperationResponse(data, &pages)) {
+  std::string operation_name = ParseOperationResponse(data, &pages);
+  if (operation_name.empty()) {
     callback_.Run(PrefetchRequestStatus::SHOULD_RETRY_WITH_BACKOFF,
-                  std::vector<RenderPageInfo>());
+                  std::string(), std::vector<RenderPageInfo>());
     return;
   }
 
-  callback_.Run(PrefetchRequestStatus::SUCCESS, pages);
+  callback_.Run(PrefetchRequestStatus::SUCCESS, operation_name, pages);
 }
 
 }  // offline_pages