Remove content::BrowserThread knowledge from Device Sensors

content/browser/device_sensors/device_sensor_host.cc

Index: content/browser/device_sensors/device_sensor_host.cc
diff --git a/content/browser/device_sensors/device_sensor_host.cc b/content/browser/device_sensors/device_sensor_host.cc
index e4b806967e5c16aac8448233141f422249d19874..81a0429c8b6f7d343c030dd3abfa4c8772b2c5d7 100644
--- a/content/browser/device_sensors/device_sensor_host.cc
+++ b/content/browser/device_sensors/device_sensor_host.cc
@@ -4,24 +4,32 @@
 
 #include "content/browser/device_sensors/device_sensor_host.h"
 
+#include "base/message_loop/message_loop.h"
+#include "build/build_config.h"
 #include "content/browser/device_sensors/device_sensor_service.h"
-#include "content/public/browser/browser_thread.h"
 #include "mojo/public/cpp/bindings/strong_binding.h"
 
+#if defined(OS_ANDROID)
+#include "content/browser/device_sensors/sensor_manager_android.h"
+#endif
+
 namespace content {
 
 template <typename MojoInterface, ConsumerType consumer_type>
 void DeviceSensorHost<MojoInterface, consumer_type>::Create(
+    scoped_refptr<base::SequencedTaskRunner> ui_task_runner,
     mojo::InterfaceRequest<MojoInterface> request) {
   mojo::MakeStrongBinding(
-      base::WrapUnique(new DeviceSensorHost<MojoInterface, consumer_type>),
+      base::WrapUnique(
+          new DeviceSensorHost<MojoInterface, consumer_type>(ui_task_runner)),
       std::move(request));
 }
 
 template <typename MojoInterface, ConsumerType consumer_type>
-DeviceSensorHost<MojoInterface, consumer_type>::DeviceSensorHost()
-    : is_started_(false) {
-  DCHECK_CURRENTLY_ON(BrowserThread::IO);
+DeviceSensorHost<MojoInterface, consumer_type>::DeviceSensorHost(
+    scoped_refptr<base::SequencedTaskRunner> ui_task_runner)
+    : is_started_(false), ui_task_runner_(ui_task_runner) {
+  DCHECK(base::MessageLoopForIO::IsCurrent());
 }
 
 template <typename MojoInterface, ConsumerType consumer_type>
@@ -39,6 +47,9 @@ void DeviceSensorHost<MojoInterface, consumer_type>::DeviceSensorHost::
   if (is_started_)
     return;
   is_started_ = true;
+#if defined(OS_ANDROID)
+  SensorManagerAndroid::GetInstance()->SetUITaskRunner(ui_task_runner_);
+#endif
   DeviceSensorService::GetInstance()->AddConsumer(consumer_type);
   callback.Run(
       DeviceSensorService::GetInstance()->GetSharedMemoryHandle(consumer_type));