Update from https://crrev.com/306655

skia/ext/image_operations.h

 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef SKIA_EXT_IMAGE_OPERATIONS_H_
 #define SKIA_EXT_IMAGE_OPERATIONS_H_
 
 #include "third_party/skia/include/core/SkBitmap.h"
 #include "third_party/skia/include/core/SkTypes.h"
 
@@ skipping 61 matching lines @@
 
     // 2-cycle Lanczos filter. This is tall in the middle, goes negative on
     // each side, then returns to zero. Does not provide as good a frequency
     // response as a 3-cycle Lanczos but is roughly 30% faster.
     RESIZE_LANCZOS2,
 
     // 3-cycle Lanczos filter. This is tall in the middle, goes negative on
     // each side, then oscillates 2 more times. It gives nice sharp edges.
     RESIZE_LANCZOS3,
 
-    // Lanczos filter + subpixel interpolation. If subpixel rendering is not
-    // appropriate we automatically fall back to Lanczos.
-    RESIZE_SUBPIXEL,
-
     // enum aliases for first and last methods by algorithm or by quality.
     RESIZE_FIRST_QUALITY_METHOD = RESIZE_GOOD,
     RESIZE_LAST_QUALITY_METHOD = RESIZE_BEST,
     RESIZE_FIRST_ALGORITHM_METHOD = RESIZE_BOX,
-    RESIZE_LAST_ALGORITHM_METHOD = RESIZE_SUBPIXEL,
+    RESIZE_LAST_ALGORITHM_METHOD = RESIZE_LANCZOS3,
   };
 
   // Resizes the given source bitmap using the specified resize method, so that
   // the entire image is (dest_size) big. The dest_subset is the rectangle in
   // this destination image that should actually be returned.
   //
   // The output image will be (dest_subset.width(), dest_subset.height()). This
   // will save work if you do not need the entire bitmap.
   //
   // The destination subset must be smaller than the destination image.
   static SkBitmap Resize(const SkBitmap& source,
                          ResizeMethod method,
                          int dest_width, int dest_height,
                          const SkIRect& dest_subset,
                          SkBitmap::Allocator* allocator = NULL);
 
   // Alternate version for resizing and returning the entire bitmap rather than
   // a subset.
   static SkBitmap Resize(const SkBitmap& source,
                          ResizeMethod method,
                          int dest_width, int dest_height,
                          SkBitmap::Allocator* allocator = NULL);
 
  private:
   ImageOperations();  // Class for scoping only.
-
-  // Supports all methods except RESIZE_SUBPIXEL.
-  static SkBitmap ResizeBasic(const SkBitmap& source,
-                              ResizeMethod method,
-                              int dest_width, int dest_height,
-                              const SkIRect& dest_subset,
-                              SkBitmap::Allocator* allocator = NULL);
-
-  // Subpixel renderer.
-  static SkBitmap ResizeSubpixel(const SkBitmap& source,
-                                 int dest_width, int dest_height,
-                                 const SkIRect& dest_subset,
-                                 SkBitmap::Allocator* allocator = NULL);
 };
 
 }  // namespace skia
 
 #endif  // SKIA_EXT_IMAGE_OPERATIONS_H_