Test that access to Generic Sensor APIs is autogranted

Bug: 715872
Change-Id: Iaf2a6cd00933cdcc4187252eee5f8e0d6ff5f790
Reviewed-on: https://chromium-review.googlesource.com/623789
Commit-Queue: Mikhail Pozdnyakov <mikhail.pozdnyakov@intel.com>
Reviewed-by: Mounir Lamouri <mlamouri@chromium.org>
Cr-Commit-Position: refs/heads/master@{#496621}

third_party/WebKit/LayoutTests/http/tests/permissions/resources/test-query.js

@@ -27,6 +27,7 @@ async_test(function(test) {
 async_test(function(test) {
     navigator.permissions.query({name:'ambient-light-sensor'}).then(function(result) {
         assert_true(result instanceof PermissionStatus);
+        assert_equals(result.state, 'granted');
         test.done();
     }).catch(function() {
         assert_unreached('querying ambient-light-sensor permission should not fail.')
@@ -36,6 +37,7 @@ async_test(function(test) {
 async_test(function(test) {
     navigator.permissions.query({name:'accelerometer'}).then(function(result) {
         assert_true(result instanceof PermissionStatus);
+        assert_equals(result.state, 'granted');
         test.done();
     }).catch(function() {
         assert_unreached('querying accelerometer permission should not fail.')
@@ -45,6 +47,7 @@ async_test(function(test) {
 async_test(function(test) {
     navigator.permissions.query({name:'gyroscope'}).then(function(result) {
         assert_true(result instanceof PermissionStatus);
+        assert_equals(result.state, 'granted');
         test.done();
     }).catch(function() {
         assert_unreached('querying gyroscope permission should not fail.')
@@ -54,6 +57,7 @@ async_test(function(test) {
 async_test(function(test) {
     navigator.permissions.query({name:'magnetometer'}).then(function(result) {
         assert_true(result instanceof PermissionStatus);
+        assert_equals(result.state, 'granted');
         test.done();
     }).catch(function() {
         assert_unreached('querying magnetometer permission should not fail.')