Created fakes for HID-detection screen testing. Initial browsertest added.

chrome/browser/ui/webui/chromeos/login/hid_detection_screen_handler.cc

Index: chrome/browser/ui/webui/chromeos/login/hid_detection_screen_handler.cc
diff --git a/chrome/browser/ui/webui/chromeos/login/hid_detection_screen_handler.cc b/chrome/browser/ui/webui/chromeos/login/hid_detection_screen_handler.cc
index 7d562da0bf4effe19da6c18742f5eebe68c252a2..f0db75daa2c40db1a0bad38f0f0f732af6d3ea99 100644
--- a/chrome/browser/ui/webui/chromeos/login/hid_detection_screen_handler.cc
+++ b/chrome/browser/ui/webui/chromeos/login/hid_detection_screen_handler.cc
@@ -14,6 +14,7 @@
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/utf_string_conversions.h"
 #include "chrome/browser/browser_process.h"
+#include "chrome/browser/chromeos/device/input_service_proxy_factory.h"
 #include "chrome/browser/ui/webui/chromeos/login/oobe_ui.h"
 #include "chrome/common/pref_names.h"
 #include "chrome/grit/generated_resources.h"
@@ -77,6 +78,7 @@ HIDDetectionScreenHandler::HIDDetectionScreenHandler(
       delegate_(NULL),
       core_oobe_actor_(core_oobe_actor),
       show_on_init_(false),
+      input_service_proxy_(InputServiceProxyFactory::GetProxy()),
       mouse_is_pairing_(false),
       pointing_device_connect_type_(InputDeviceInfo::TYPE_UNKNOWN),
       keyboard_is_pairing_(false),
@@ -89,7 +91,7 @@ HIDDetectionScreenHandler::~HIDDetectionScreenHandler() {
   adapter_initially_powered_.reset();
   if (adapter_.get())
     adapter_->RemoveObserver(this);
-  input_service_proxy_.RemoveObserver(this);
+  input_service_proxy_->RemoveObserver(this);
   if (delegate_)
     delegate_->OnActorDestroyed(this);
 }
@@ -119,7 +121,7 @@ void HIDDetectionScreenHandler::Show() {
     return;
   }
   core_oobe_actor_->InitDemoModeDetection();
-  input_service_proxy_.AddObserver(this);
+  input_service_proxy_->AddObserver(this);
   UpdateDevices();
 
   PrefService* local_state = g_browser_process->local_state();
@@ -136,7 +138,7 @@ void HIDDetectionScreenHandler::Show() {
 void HIDDetectionScreenHandler::Hide() {
   if (adapter_.get())
     adapter_->RemoveObserver(this);
-  input_service_proxy_.RemoveObserver(this);
+  input_service_proxy_->RemoveObserver(this);
 }
 
 void HIDDetectionScreenHandler::SetDelegate(Delegate* delegate) {
@@ -147,7 +149,7 @@ void HIDDetectionScreenHandler::SetDelegate(Delegate* delegate) {
 
 void HIDDetectionScreenHandler::CheckIsScreenRequired(
     const base::Callback<void(bool)>& on_check_done) {
-  input_service_proxy_.GetDevices(
+  input_service_proxy_->GetDevices(
       base::Bind(&HIDDetectionScreenHandler::OnGetInputDevicesListForCheck,
                  weak_ptr_factory_.GetWeakPtr(),
                  on_check_done));
@@ -403,7 +405,7 @@ void HIDDetectionScreenHandler::RegisterPrefs(PrefRegistrySimple* registry) {
 }
 
 void HIDDetectionScreenHandler::UpdateDevices() {
-  input_service_proxy_.GetDevices(
+  input_service_proxy_->GetDevices(
       base::Bind(&HIDDetectionScreenHandler::OnGetInputDevicesList,
                  weak_ptr_factory_.GetWeakPtr()));
 }