Fix broken normalization of some HID axes on OSX

content/browser/gamepad/gamepad_platform_data_fetcher_mac.h

Index: content/browser/gamepad/gamepad_platform_data_fetcher_mac.h
diff --git a/content/browser/gamepad/gamepad_platform_data_fetcher_mac.h b/content/browser/gamepad/gamepad_platform_data_fetcher_mac.h
index 1fe50c0cd14d623b666246505f84dfee774eb9ee..254ebb5ca8f6a65c29f8011cdeb6855f580159f3 100644
--- a/content/browser/gamepad/gamepad_platform_data_fetcher_mac.h
+++ b/content/browser/gamepad/gamepad_platform_data_fetcher_mac.h
@@ -88,6 +88,7 @@ class GamepadPlatformDataFetcherMac : public GamepadDataFetcher,
         IOHIDElementRef axis_elements[blink::WebGamepad::axesLengthCap];
         CFIndex axis_minimums[blink::WebGamepad::axesLengthCap];
         CFIndex axis_maximums[blink::WebGamepad::axesLengthCap];
+        CFIndex axis_report_sizes[blink::WebGamepad::axesLengthCap];
       } hid;
       struct {
         XboxController* device;