Added support for GVR controllers

device/gamepad/gamepad_provider.cc

Index: device/gamepad/gamepad_provider.cc
diff --git a/device/gamepad/gamepad_provider.cc b/device/gamepad/gamepad_provider.cc
index 510194da0e81454445229e79db63bb739d0f1dbe..d5dd358702c74bcdb42ada0696cce0fd2a56f6d3 100644
--- a/device/gamepad/gamepad_provider.cc
+++ b/device/gamepad/gamepad_provider.cc
@@ -187,9 +187,11 @@ void GamepadProvider::DoRemoveSourceGamepadDataFetcher(GamepadSource source) {
   DCHECK(polling_thread_->task_runner()->BelongsToCurrentThread());
 
   for (GamepadFetcherVector::iterator it = data_fetchers_.begin();
-       it != data_fetchers_.end(); ++it) {
+       it != data_fetchers_.end();) {
     if ((*it)->source() == source) {
-      data_fetchers_.erase(it);
+      it = data_fetchers_.erase(it);
+    } else {
+      ++it;
     }
   }
 }