Allow script to request durable storage permission (chrome side)

content/renderer/durable_dispatcher.cc

+// Copyright 2013 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 "content/renderer/durable_dispatcher.h"
+
+#include "base/bind.h"
+#include "content/public/common/service_registry.h"
+#include "content/public/renderer/render_frame.h"
+#include "third_party/WebKit/public/platform/WebString.h"
+#include "third_party/WebKit/public/web/WebSecurityOrigin.h"
+#include "third_party/WebKit/public/web/WebUserGestureIndicator.h"
+
+namespace content {
+
+DurableStorageDispatcher::DurableStorageDispatcher(RenderFrame* render_frame)
+    : RenderFrameObserver(render_frame) {
+}
+
+DurableStorageDispatcher::~DurableStorageDispatcher() {
+}
+
+void DurableStorageDispatcher::requestPermission(
+    const WebURL& url,
+    blink::WebDurableStoragePermissionCallbacks* callbacks) {
+  callbacks_.reset(callbacks);
+  LOG(ERROR)
+      << "About to call RequestPermission through the permission service";
+  if (!permission_service_.get()) {
+    render_frame()->GetServiceRegistry()->ConnectToRemoteService(
+        mojo::GetProxy(&permission_service_));
+  }
+  DCHECK(permission_service_);
+
+  permission_service_->RequestPermission(
+      PERMISSION_NAME_DURABLE_STORAGE, url.string().utf8(),
+      blink::WebUserGestureIndicator::isProcessingUserGesture(),
+      base::Bind(&DurableStorageDispatcher::OnPermissionSet,
+                 base::Unretained(this)));
+}
+
+void DurableStorageDispatcher::OnPermissionSet(PermissionStatus status) {
+  LOG(ERROR) << "Top of OnPermissionSet, status = " << status;
+  blink::WebDurableStoragePermission result;
+  switch (status) {
+    case PERMISSION_STATUS_GRANTED:
+      result = blink::WebDurableStoragePermission::Granted;
+      break;
+    case PERMISSION_STATUS_DENIED:
+      result = blink::WebDurableStoragePermission::Denied;
+      break;
+    case PERMISSION_STATUS_ASK:
+      result = blink::WebDurableStoragePermission::Default;

[mlamouri (slow - plz ping), 2015/07/02 09:53:01]

Why do you use Default and not ASK?

[dgrogan, 2015/07/07 04:15:11]

Default matches the storage spec.

+      break;
+    default:
+      NOTREACHED() << "Got " << status;
+  }
+  callbacks_->didGetPermission(result);
+}
+
+}  // namespace content