Move content/child/background_sync to Blink.

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 <memory>
 #include <vector>
@@ skipping 19 matching lines @@
 #include "base/time/time.h"
 #include "base/trace_event/memory_allocator_dump_guid.h"
 #include "base/trace_event/memory_dump_manager.h"
 #include "base/trace_event/trace_event.h"
 #include "blink/public/resources/grit/blink_image_resources.h"
 #include "blink/public/resources/grit/blink_resources.h"
 #include "build/build_config.h"
 #include "components/mime_util/mime_util.h"
 #include "content/app/resources/grit/content_resources.h"
 #include "content/app/strings/grit/content_strings.h"
-#include "content/child/background_sync/background_sync_provider.h"
 #include "content/child/child_thread_impl.h"
 #include "content/child/content_child_helpers.h"
 #include "content/child/notifications/notification_dispatcher.h"
 #include "content/child/notifications/notification_manager.h"
 #include "content/child/push_messaging/push_dispatcher.h"
 #include "content/child/push_messaging/push_provider.h"
 #include "content/child/thread_safe_sender.h"
 #include "content/child/web_url_loader_impl.h"
 #include "content/child/web_url_request_util.h"
 #include "content/child/worker_thread_registry.h"
@@ skipping 331 matching lines @@
   InternalInit();
 }
 
 void BlinkPlatformImpl::InternalInit() {
   // ChildThread may not exist in some tests.
   if (ChildThreadImpl::current()) {
     thread_safe_sender_ = ChildThreadImpl::current()->thread_safe_sender();
     notification_dispatcher_ =
         ChildThreadImpl::current()->notification_dispatcher();
     push_dispatcher_ = ChildThreadImpl::current()->push_dispatcher();
-    main_thread_sync_provider_.reset(
-        new BackgroundSyncProvider(main_thread_task_runner_.get()));
   }
 }
 
 void BlinkPlatformImpl::WaitUntilWebThreadTLSUpdate(
     blink::scheduler::WebThreadBase* thread) {
   base::WaitableEvent event(base::WaitableEvent::ResetPolicy::AUTOMATIC,
                             base::WaitableEvent::InitialState::NOT_SIGNALED);
   thread->GetTaskRunner()->PostTask(
       FROM_HERE,
       base::Bind(&BlinkPlatformImpl::UpdateWebThreadTLS, base::Unretained(this),
@@ skipping 363 matching lines @@
 }
 
 blink::WebPushProvider* BlinkPlatformImpl::pushProvider() {
   if (!thread_safe_sender_.get() || !push_dispatcher_.get())
     return nullptr;
 
   return PushProvider::ThreadSpecificInstance(thread_safe_sender_.get(),
                                               push_dispatcher_.get());
 }
 
-blink::WebSyncProvider* BlinkPlatformImpl::backgroundSyncProvider() {
-  if (IsMainThread())
-    return main_thread_sync_provider_.get();
-
-  return BackgroundSyncProvider::GetOrCreateThreadSpecificInstance(
-      main_thread_task_runner_.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 90 matching lines @@
   return WebString::fromUTF8(ui::KeycodeConverter::DomKeyToKeyString(
       static_cast<ui::DomKey>(dom_key)));
 }
 
 int BlinkPlatformImpl::domKeyEnumFromString(const WebString& key_string) {
   return static_cast<int>(
       ui::KeycodeConverter::KeyStringToDomKey(key_string.utf8()));
 }
 
 }  // namespace content