webkit: Fix build in ISO C++ 11 mode

Change-Id: I32b3121ae46678f847dcd74ea74484aaf8f34eaf
Signed-off-by: Bernhard Rosenkraenzer <Bernhard.Rosenkranzer@linaro.org>
webkit: Revert WebAudio changes to fix build with Linaro

Change-Id: I6dbf711a400f3ae91b06ddde7ce3c960c17f61fb