Revert of [sensors] Ambient light sensor implementation for ChromeOS and Linux.

content/browser/frame_host/render_frame_host_impl.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/browser/frame_host/render_frame_host_impl.h"
 
 #include <utility>
 
 #include "base/bind.h"
 #include "base/command_line.h"
@@ skipping 2194 matching lines @@
       base::Bind(&WebSocketManager::CreateWebSocket,
                  process_->GetID(),
                  routing_id_));
 
 #if defined(ENABLE_WEBVR)
   GetInterfaceRegistry()->AddInterface<device::VRService>(
       base::Bind(&device::VRServiceImpl::BindRequest));
 #endif
   if (base::FeatureList::IsEnabled(features::kGenericSensor)) {
     GetInterfaceRegistry()->AddInterface(
-        base::Bind(&device::SensorProviderImpl::Create,
-                   BrowserThread::GetTaskRunnerForThread(BrowserThread::FILE)),
+        base::Bind(&device::SensorProviderImpl::Create),
         BrowserThread::GetTaskRunnerForThread(BrowserThread::IO));
   }
 
 #if defined(ENABLE_WEBRTC)
   // BrowserMainLoop::GetInstance() may be null on unit tests.
   if (BrowserMainLoop::GetInstance()) {
     // BrowserMainLoop, which owns MediaStreamManager, is alive for the lifetime
     // of Mojo communication (see BrowserMainLoop::ShutdownThreadsAndCleanUp(),
     // which shuts down Mojo). Hence, passing that MediaStreamManager instance
     // as a raw pointer here is safe.
@@ skipping 957 matching lines @@
   web_bluetooth_service_->SetClientConnectionErrorHandler(base::Bind(
       &RenderFrameHostImpl::DeleteWebBluetoothService, base::Unretained(this)));
   return web_bluetooth_service_.get();
 }
 
 void RenderFrameHostImpl::DeleteWebBluetoothService() {
   web_bluetooth_service_.reset();
 }
 
 }  // namespace content