Allowing Lanczos3 to be used in chromium

src/core/SkBitmapScaler.cpp

 #include "SkBitmapScaler.h"
 #include "SkBitmapFilter.h"
 #include "SkRect.h"
 #include "SkTArray.h"
 #include "SkErrorInternals.h"
 #include "SkConvolver.h"
 
 // SkResizeFilter ----------------------------------------------------------------
 
 // Encapsulates computation and storage of the filters required for one complete
@@ skipping 210 matching lines @@
             return SkBitmapScaler::RESIZE_TRIANGLE;
         // Users of RESIZE_BETTER are willing to trade some quality in order
         // to improve performance, but are guaranteed not to devolve to a linear
         // resampling. In visual tests we see that Hamming-1 is not as good as
         // Lanczos-2, however it is about 40% faster and Lanczos-2 itself is
         // about 30% faster than Lanczos-3. The use of Hamming-1 has been deemed
         // an acceptable trade-off between quality and speed.
         case SkBitmapScaler::RESIZE_BETTER:
             return SkBitmapScaler::RESIZE_HAMMING;
         default:
+#ifdef SK_HIGH_QUALITY_IS_LANCZOS
+            return SkBitmapScaler::RESIZE_LANCZOS3;
+#else
             return SkBitmapScaler::RESIZE_MITCHELL;
+#endif
     }
 }
 
 // static
 bool SkBitmapScaler::Resize(SkBitmap* resultPtr,
                             const SkBitmap& source,
                             ResizeMethod method,
                             int destWidth, int destHeight,
                             const SkIRect& destSubset,
                             const SkConvolutionProcs& convolveProcs,
@@ skipping 68 matching lines @@
 bool SkBitmapScaler::Resize(SkBitmap* resultPtr,
                             const SkBitmap& source,
                             ResizeMethod method,
                             int destWidth, int destHeight,
                             const SkConvolutionProcs& convolveProcs,
                             SkBitmap::Allocator* allocator) {
     SkIRect destSubset = { 0, 0, destWidth, destHeight };
     return Resize(resultPtr, source, method, destWidth, destHeight, destSubset,
                   convolveProcs, allocator);
 }