Support DataSaver for SharedWorker

third_party/WebKit/Source/web/WebSharedWorkerImpl.cpp

 /*
  * Copyright (C) 2009 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 105 matching lines @@
     main_script_loader_.Clear();
     client_->WorkerScriptLoadFailed();
     delete this;
     return;
   }
   if (worker_thread_)
     worker_thread_->Terminate();
   worker_inspector_proxy_->WorkerThreadTerminated();
 }
 
-void WebSharedWorkerImpl::InitializeLoader() {
+void WebSharedWorkerImpl::InitializeLoader(bool data_saver_enabled) {
   DCHECK(IsMainThread());
 
   // Create 'shadow page'. This page is never displayed, it is used to proxy the
   // loading requests from the worker context to the rest of WebKit and Chromium
   // infrastructure.
   DCHECK(!web_view_);
   web_view_ = WebView::Create(nullptr, kWebPageVisibilityStateVisible);
   // FIXME: http://crbug.com/363843. This needs to find a better way to
   // not create graphics layers.
   web_view_->GetSettings()->SetAcceleratedCompositingEnabled(false);
+  web_view_->GetSettings()->SetDataSaverEnabled(data_saver_enabled);
   // FIXME: Settings information should be passed to the Worker process from
   // Browser process when the worker is created (similar to
   // RenderThread::OnCreateNewView).
   main_frame_ = ToWebLocalFrameBase(WebLocalFrame::Create(
       WebTreeScopeType::kDocument, this,
       Platform::Current()->GetInterfaceProvider(), nullptr));
   web_view_->SetMainFrame(main_frame_.Get());
   main_frame_->SetDevToolsAgentClient(this);
 
   // If we were asked to pause worker context on start and wait for debugger
@@ skipping 137 matching lines @@
   port->Entangle(std::move(channel));
   SECURITY_DCHECK(worker_global_scope->IsSharedWorkerGlobalScope());
   worker_global_scope->DispatchEvent(CreateConnectEvent(port));
 }
 
 void WebSharedWorkerImpl::StartWorkerContext(
     const WebURL& url,
     const WebString& name,
     const WebString& content_security_policy,
     WebContentSecurityPolicyType policy_type,
-    WebAddressSpace creation_address_space) {
+    WebAddressSpace creation_address_space,
+    bool data_saver_enabled) {
   DCHECK(IsMainThread());
   url_ = url;
   name_ = name;
   creation_address_space_ = creation_address_space;
-  InitializeLoader();
+  InitializeLoader(data_saver_enabled);
 }
 
 void WebSharedWorkerImpl::DidReceiveScriptLoaderResponse() {
   DCHECK(IsMainThread());
   probe::didReceiveScriptResponse(loading_document_,
                                   main_script_loader_->Identifier());
   client_->SelectAppCacheID(main_script_loader_->AppCacheID());
 }
 
 void WebSharedWorkerImpl::OnScriptLoaderFinished() {
@@ skipping 127 matching lines @@
   if (devtools_agent)
     devtools_agent->DispatchOnInspectorBackend(session_id, call_id, method,
                                                message);
 }
 
 WebSharedWorker* WebSharedWorker::Create(WebSharedWorkerClient* client) {
   return new WebSharedWorkerImpl(client);
 }
 
 }  // namespace blink