Add support for WaveShaperNode.oversample

Source/core/core.gypi

 
 {
     'variables': {
         'core_idl_files': [
             'css/CSS.idl',
             'css/CSSCharsetRule.idl',
             'css/CSSFontFaceLoadEvent.idl',
             'css/CSSFontFaceRule.idl',
             'css/CSSHostRule.idl',
             'css/CSSImportRule.idl',
@@ skipping 2524 matching lines @@
             'platform/audio/AudioUtilities.h',
             'platform/audio/Biquad.cpp',
             'platform/audio/Biquad.h',
             'platform/audio/Cone.cpp',
             'platform/audio/Cone.h',
             'platform/audio/DenormalDisabler.h',
             'platform/audio/DirectConvolver.cpp',
             'platform/audio/DirectConvolver.h',
             'platform/audio/Distance.cpp',
             'platform/audio/Distance.h',
+            'platform/audio/DownSampler.cpp',
+            'platform/audio/DownSampler.h',
             'platform/audio/DynamicsCompressor.cpp',
             'platform/audio/DynamicsCompressor.h',
             'platform/audio/DynamicsCompressorKernel.cpp',
             'platform/audio/DynamicsCompressorKernel.h',
             'platform/audio/EqualPowerPanner.cpp',
             'platform/audio/EqualPowerPanner.h',
             'platform/audio/FFTConvolver.cpp',
             'platform/audio/FFTConvolver.h',
             'platform/audio/FFTFrame.cpp',
             'platform/audio/FFTFrame.h',
@@ skipping 17 matching lines @@
             'platform/audio/ReverbAccumulationBuffer.cpp',
             'platform/audio/ReverbAccumulationBuffer.h',
             'platform/audio/ReverbConvolver.cpp',
             'platform/audio/ReverbConvolver.h',
             'platform/audio/ReverbConvolverStage.cpp',
             'platform/audio/ReverbConvolverStage.h',
             'platform/audio/ReverbInputBuffer.cpp',
             'platform/audio/ReverbInputBuffer.h',
             'platform/audio/SincResampler.cpp',
             'platform/audio/SincResampler.h',
+            'platform/audio/UpSampler.cpp',
+            'platform/audio/UpSampler.h',
             'platform/audio/VectorMath.cpp',
             'platform/audio/VectorMath.h',
             'platform/audio/ZeroPole.cpp',
             'platform/audio/ZeroPole.h',
             'platform/audio/chromium/AudioBusChromium.cpp',
             'platform/audio/chromium/AudioDestinationChromium.cpp',
             'platform/audio/chromium/AudioDestinationChromium.h',
             'platform/audio/chromium/FFTFrameOpenMAXDLAndroid.cpp',
             'platform/audio/ffmpeg/FFTFrameFFMPEG.cpp',
             'platform/audio/mac/FFTFrameMac.cpp',
@@ skipping 1090 matching lines @@
                 'bison_exe': 'bison',
                 # We specify a preprocess so it happens locally and won't get
                 # distributed to goma.
                 # FIXME: /usr/bin/gcc won't exist on OSX forever. We want to
                 # use /usr/bin/clang once we require Xcode 4.x.
                 'preprocessor': '--preprocessor "/usr/bin/gcc -E -P -x c++"'
               }],
          ],
     }
 }