Introduce ViewRoot forwarding input/view events to native

content/browser/webui/url_data_manager_backend.cc

 // Copyright (c) 2012 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/browser/webui/url_data_manager_backend.h"
 
 #include <set>
 #include <utility>
 
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/compiler_specific.h"
 #include "base/debug/alias.h"
 #include "base/lazy_instance.h"
 #include "base/location.h"
 #include "base/macros.h"
 #include "base/memory/ptr_util.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/ref_counted_memory.h"
 #include "base/memory/weak_ptr.h"
 #include "base/profiler/scoped_tracker.h"
 #include "base/single_thread_task_runner.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/string_util.h"
 #include "base/strings/stringprintf.h"
+#include "base/task_scheduler/post_task.h"
 #include "base/threading/thread_task_runner_handle.h"
-#include "base/threading/worker_pool.h"
 #include "base/trace_event/trace_event.h"
 #include "content/browser/blob_storage/chrome_blob_storage_context.h"
 #include "content/browser/histogram_internals_request_job.h"
 #include "content/browser/net/view_blob_internals_job_factory.h"
 #include "content/browser/net/view_http_cache_job_factory.h"
 #include "content/browser/resource_context_impl.h"
 #include "content/browser/webui/i18n_source_stream.h"
 #include "content/browser/webui/shared_resources_data_source.h"
 #include "content/browser/webui/url_data_source_impl.h"
 #include "content/browser/webui/web_ui_data_source_impl.h"
@@ skipping 433 matching lines @@
   DCHECK(data_);
   CHECK(buf->data());
 
   int remaining = data_->size() - data_offset_;
   if (buf_size > remaining)
     buf_size = remaining;
 
   if (buf_size == 0)
     return 0;
 
-  base::WorkerPool::GetTaskRunner(false)->PostTaskAndReply(
-      FROM_HERE, base::Bind(&CopyData, base::RetainedRef(buf), buf_size, data_,
-                            data_offset_),
+  base::PostTaskWithTraitsAndReply(

[boliu, 2017/01/05 19:09:28]

unrelated changes in this file?

[Jinsuk Kim, 2017/01/05 22:30:15]

No idea how this sneaked in... reverted.

+      FROM_HERE, base::TaskTraits().WithShutdownBehavior(
+                     base::TaskShutdownBehavior::CONTINUE_ON_SHUTDOWN),
+      base::Bind(&CopyData, base::RetainedRef(buf), buf_size, data_,
+                 data_offset_),
       base::Bind(&URLRequestChromeJob::ReadRawDataComplete, AsWeakPtr(),
                  buf_size));
   data_offset_ += buf_size;
 
   return net::ERR_IO_PENDING;
 }
 
 void URLRequestChromeJob::DelayStartForDevTools(
     const base::WeakPtr<URLRequestChromeJob>& job) {
   BrowserThread::PostTask(
@@ skipping 399 matching lines @@
 
 }  // namespace
 
 net::URLRequestJobFactory::ProtocolHandler* CreateDevToolsProtocolHandler(
     ResourceContext* resource_context,
     bool is_incognito) {
   return new DevToolsJobFactory(resource_context, is_incognito);
 }
 
 }  // namespace content