Updating Gamepad API to match latest spec

ppapi/shared_impl/ppb_gamepad_shared.cc

Index: ppapi/shared_impl/ppb_gamepad_shared.cc
diff --git a/ppapi/shared_impl/ppb_gamepad_shared.cc b/ppapi/shared_impl/ppb_gamepad_shared.cc
index 41c7668ebb1c62fda45cffd0acfcf848de3fe334..9efe5648553a5fc28cbfe91f6b430397ee8e49db 100644
--- a/ppapi/shared_impl/ppb_gamepad_shared.cc
+++ b/ppapi/shared_impl/ppb_gamepad_shared.cc
@@ -20,16 +20,17 @@ void ConvertWebKitGamepadData(const WebKitGamepads& webkit_data,
                      id_size_does_not_match);
       COMPILE_ASSERT(sizeof(output_pad.axes) == sizeof(webkit_pad.axes),
                      axes_size_does_not_match);
-      COMPILE_ASSERT(sizeof(output_pad.buttons) == sizeof(webkit_pad.buttons),
-                     buttons_size_does_not_match);
       memcpy(output_pad.id, webkit_pad.id, sizeof(output_pad.id));
       output_pad.timestamp = webkit_pad.timestamp;
       output_pad.axes_length = webkit_pad.axes_length;
       memcpy(output_pad.axes, webkit_pad.axes, sizeof(output_pad.axes));
       output_pad.buttons_length = webkit_pad.buttons_length;
-      memcpy(output_pad.buttons,
-             webkit_pad.buttons,
-             sizeof(output_pad.buttons));
+      // Can't memcpy because buttons are different types
+      for (unsigned j = 0; j < webkit_pad.buttons_length; ++j) {
+        output_pad.buttons[j].value = webkit_pad.buttons[j].value;
+        output_pad.buttons[j].pressed = webkit_pad.buttons[j].pressed ?
+            PP_TRUE : PP_FALSE;
+      }
     }
   }
 }