2010-09-22 Chris Rogers <crogers@google.com>

      Reviewed by James Robinson.

        Add HRTFElevation files
        https://bugs.webkit.org/show_bug.cgi?id=45864

        No new tests since audio API is not yet implemented.

        * platform/audio/HRTFElevation.cpp: Added.
        (WebCore::HRTFElevation::calculateSymmetricKernelsForAzimuthElevation):
        (WebCore::HRTFElevation::calculateKernelsForAzimuthElevation):
        (WebCore::HRTFElevation::createForSubject):
        (WebCore::HRTFElevation::createByInterpolatingSlices):
        (WebCore::HRTFElevation::getKernelsFromAzimuth):
        * platform/audio/HRTFElevation.h: Added.
        (WebCore::HRTFElevation::kernelListL):
        (WebCore::HRTFElevation::kernelListR):
        (WebCore::HRTFElevation::elevationAngle):
        (WebCore::HRTFElevation::numberOfAzimuths):
        (WebCore::HRTFElevation::sampleRate):
        (WebCore::HRTFElevation::HRTFElevation):

git-svn-id: svn://svn.chromium.org/blink/trunk@68029 bbb929c8-8fbe-4397-9dbb-9b2b20218538