Add a buffered SkStream class.

gyp/utils.gyp

 # Gyp for utils.
 {
   'targets': [
     {
       'target_name': 'utils',
       'product_name': 'skia_utils',
       'type': 'static_library',
       'standalone_static_library': 1,
       'dependencies': [
         'core.gyp:*',
@@ skipping 16 matching lines @@
         # Classes for a threadpool.
         '../include/utils/SkCondVar.h',
         '../include/utils/SkCountdown.h',
         '../include/utils/SkRunnable.h',
         '../include/utils/SkThreadPool.h',
         '../src/utils/SkCondVar.cpp',
         '../src/utils/SkCountdown.cpp',
         '../src/utils/SkThreadPool.cpp',
 
         '../include/utils/SkBoundaryPatch.h',
+        '../include/utils/SkFrontBufferedStream.h',
         '../include/utils/SkCamera.h',
         '../include/utils/SkCanvasStateUtils.h',
         '../include/utils/SkCubicInterval.h',
         '../include/utils/SkCullPoints.h',
         '../include/utils/SkDebugUtils.h',
         '../include/utils/SkDeferredCanvas.h',
         '../include/utils/SkDumpCanvas.h',
         '../include/utils/SkInterpolator.h',
         '../include/utils/SkLayer.h',
         '../include/utils/SkMatrix44.h',
@@ skipping 11 matching lines @@
         '../include/utils/SkUnitMappers.h',
         '../include/utils/SkWGL.h',
 
         '../src/utils/SkBase64.cpp',
         '../src/utils/SkBase64.h',
         '../src/utils/SkBitmapHasher.cpp',
         '../src/utils/SkBitmapHasher.h',
         '../src/utils/SkBitSet.cpp',
         '../src/utils/SkBitSet.h',
         '../src/utils/SkBoundaryPatch.cpp',
+        '../src/utils/SkFrontBufferedStream.cpp',
         '../src/utils/SkCamera.cpp',
         '../src/utils/SkCanvasStack.h',
         '../src/utils/SkCanvasStack.cpp',
         '../src/utils/SkCanvasStateUtils.cpp',
         '../src/utils/SkCubicInterval.cpp',
         '../src/utils/SkCullPoints.cpp',
         '../src/utils/SkDeferredCanvas.cpp',
         '../src/utils/SkDumpCanvas.cpp',
         '../src/utils/SkFloatUtils.h',
         '../src/utils/SkInterpolator.cpp',
@@ skipping 142 matching lines @@
       },
     },
   ],
 }
 
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