Implement a RenderFrame-less path for Web Notifications.

content/child/blink_platform_impl.cc

 // Copyright 2014 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/child/blink_platform_impl.h"
 
 #include <math.h>
 
 #include <vector>
 
@@ skipping 15 matching lines @@
 #include "base/synchronization/waitable_event.h"
 #include "base/sys_info.h"
 #include "base/threading/platform_thread.h"
 #include "base/time/time.h"
 #include "blink/public/resources/grit/blink_resources.h"
 #include "content/app/resources/grit/content_resources.h"
 #include "content/app/strings/grit/content_strings.h"
 #include "content/child/child_thread.h"
 #include "content/child/content_child_helpers.h"
 #include "content/child/geofencing/web_geofencing_provider_impl.h"
+#include "content/child/notifications/notification_dispatcher.h"
+#include "content/child/notifications/notification_manager.h"
+#include "content/child/thread_safe_sender.h"
 #include "content/child/web_discardable_memory_impl.h"
 #include "content/child/web_gesture_curve_impl.h"
 #include "content/child/web_socket_stream_handle_impl.h"
 #include "content/child/web_url_loader_impl.h"
 #include "content/child/websocket_bridge.h"
 #include "content/child/webthread_impl.h"
 #include "content/child/worker_task_runner.h"
 #include "content/public/common/content_client.h"
 #include "net/base/data_url.h"
 #include "net/base/mime_util.h"
@@ skipping 374 matching lines @@
     : main_loop_(base::MessageLoop::current()),
       shared_timer_func_(NULL),
       shared_timer_fire_time_(0.0),
       shared_timer_fire_time_was_set_while_suspended_(false),
       shared_timer_suspended_(0),
       current_thread_slot_(&DestroyCurrentThread) {
   // ChildThread may not exist in some tests.
   if (ChildThread::current()) {
     geofencing_provider_.reset(new WebGeofencingProviderImpl(
         ChildThread::current()->thread_safe_sender()));
+    thread_safe_sender_ = ChildThread::current()->thread_safe_sender();
+    notification_dispatcher_ =
+        ChildThread::current()->notification_dispatcher();
   }
 }
 
 BlinkPlatformImpl::~BlinkPlatformImpl() {
 }
 
 WebURLLoader* BlinkPlatformImpl::createURLLoader() {
   ChildThread* child_thread = ChildThread::current();
   // There may be no child thread in RenderViewTests.  These tests can still use
   // data URLs to bypass the ResourceDispatcher.
@@ skipping 578 matching lines @@
 }
 
 blink::WebCrypto* BlinkPlatformImpl::crypto() {
   return &web_crypto_;
 }
 
 blink::WebGeofencingProvider* BlinkPlatformImpl::geofencingProvider() {
   return geofencing_provider_.get();
 }
 
+blink::WebNotificationManager*
+BlinkPlatformImpl::notificationManager() {
+  if (!thread_safe_sender_.get() || !notification_dispatcher_.get())
+    return nullptr;
+
+  return NotificationManager::ThreadSpecificInstance(
+      thread_safe_sender_.get(),

[Mike West, 2014/10/24 13:20:18]

Do you need to store the ThreadSafeSender and NotificationDispatcher in the
constructor? Can't you grab them here and drop the object properties?

[Peter Beverloo, 2014/10/24 13:57:35]

ChildThread::current() is stored in a TLS and is not available here when called
from a worker. This is the common practice, and also how it's implemented in
renderer_blink_platform_impl.

+      notification_dispatcher_.get());
+}
+
 WebThemeEngine* BlinkPlatformImpl::themeEngine() {
   return &native_theme_engine_;
 }
 
 WebFallbackThemeEngine* BlinkPlatformImpl::fallbackThemeEngine() {
   return &fallback_theme_engine_;
 }
 
 blink::Platform::FileHandle BlinkPlatformImpl::databaseOpenFile(
     const blink::WebString& vfs_file_name, int desired_flags) {
@@ skipping 166 matching lines @@
 }
 
 // static
 void BlinkPlatformImpl::DestroyCurrentThread(void* thread) {
   WebThreadImplForMessageLoop* impl =
       static_cast<WebThreadImplForMessageLoop*>(thread);
   delete impl;
 }
 
 }  // namespace content