[sensors] Add Permission guard to the generic sensor apis.

chrome/browser/permissions/permission_manager.cc

Index: chrome/browser/permissions/permission_manager.cc
diff --git a/chrome/browser/permissions/permission_manager.cc b/chrome/browser/permissions/permission_manager.cc
index 9b54d1561e26c849784bc26e3e3bdc83f83db3b5..5919143346759b408493f268c95ffe5fd54a3654 100644
--- a/chrome/browser/permissions/permission_manager.cc
+++ b/chrome/browser/permissions/permission_manager.cc
@@ -21,6 +21,7 @@
 #include "chrome/browser/permissions/permission_request_id.h"
 #include "chrome/browser/permissions/permission_uma_util.h"
 #include "chrome/browser/profiles/profile.h"
+#include "chrome/browser/sensor/sensor_permission_context.h"
 #include "chrome/browser/storage/durable_storage_permission_context.h"
 #include "chrome/browser/tab_contents/tab_util.h"
 #include "chrome/common/features.h"
@@ -106,6 +107,8 @@ ContentSettingsType PermissionTypeToContentSetting(PermissionType permission) {
       return CONTENT_SETTINGS_TYPE_MEDIASTREAM_CAMERA;
     case PermissionType::BACKGROUND_SYNC:
       return CONTENT_SETTINGS_TYPE_BACKGROUND_SYNC;
+    case PermissionType::SENSORS:
+      return CONTENT_SETTINGS_TYPE_SENSORS;
     case PermissionType::FLASH:
       return CONTENT_SETTINGS_TYPE_PLUGINS;
     case PermissionType::NUM:
@@ -257,6 +260,8 @@ PermissionManager::PermissionManager(Profile* profile)
           CONTENT_SETTINGS_TYPE_MEDIASTREAM_CAMERA);
   permission_contexts_[PermissionType::BACKGROUND_SYNC] =
       base::MakeUnique<BackgroundSyncPermissionContext>(profile);
+  permission_contexts_[PermissionType::SENSORS] =
+      base::MakeUnique<SensorPermissionContext>(profile);
 #if defined(ENABLE_PLUGINS)
   permission_contexts_[PermissionType::FLASH] =
       base::MakeUnique<FlashPermissionContext>(profile);