2010-08-30 Chris Rogers <crogers@google.com>

      Reviewed by Chris Marrin.

        audio engine: add Reverb class
        https://bugs.webkit.org/show_bug.cgi?id=36466

        No new tests since audio API is not yet implemented.

        * platform/audio: Added.
        * platform/audio/Reverb.cpp: Added.
        (WebCore::calculateNormalizationScale):
        (WebCore::Reverb::Reverb):
        (WebCore::Reverb::initialize):
        (WebCore::Reverb::process):
        (WebCore::Reverb::reset):
        * platform/audio/Reverb.h: Added.
        (WebCore::Reverb::):
        (WebCore::Reverb::impulseResponseLength):


git-svn-id: svn://svn.chromium.org/blink/trunk@66413 bbb929c8-8fbe-4397-9dbb-9b2b20218538