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

chrome/android/java/strings/android_chrome_strings.grd

Index: chrome/android/java/strings/android_chrome_strings.grd
diff --git a/chrome/android/java/strings/android_chrome_strings.grd b/chrome/android/java/strings/android_chrome_strings.grd
index e612988d462e1c1e1c6c80d563af5774d6a78961..638fabf6b2d8a01f19e0bc257a194e5f76c90140 100644
--- a/chrome/android/java/strings/android_chrome_strings.grd
+++ b/chrome/android/java/strings/android_chrome_strings.grd
@@ -596,6 +596,10 @@ Your Google account may have other forms of browsing history like searches and a
       <message name="IDS_MIDI_SYSEX_PERMISSION_TITLE" desc="Title of the permission that allows a website to get full control of MIDI devices [CHAR-LIMIT=32]">
         Allow full control of MIDI devices
       </message>
+      <!-- TODO(riju): Fix it -->
+      <message name="IDS_SENSORS_PERMISSION_TITLE" desc="Title of the permission that allows a website to get full control of sensors [CHAR-LIMIT=32]">
+        Allow full control of Sensors
+      </message>
       <message name="IDS_BACKGROUND_SYNC_PERMISSION_TITLE" desc="Title of the permission that allows websites to queue an operation for the next time the device is online[CHAR-LIMIT=32]">
         Background sync
       </message>