Update from https://crrev.com/306706

skia/ext/bitmap_platform_device_win.h

 // Copyright (c) 2012 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_BITMAP_PLATFORM_DEVICE_WIN_H_
 #define SKIA_EXT_BITMAP_PLATFORM_DEVICE_WIN_H_
 
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
 #include "skia/ext/platform_device.h"
@@ skipping 17 matching lines @@
  public:
   // Factory function. is_opaque should be set if the caller knows the bitmap
   // will be completely opaque and allows some optimizations.
   //
   // The |shared_section| parameter is optional (pass NULL for default
   // behavior). If |shared_section| is non-null, then it must be a handle to a
   // file-mapping object returned by CreateFileMapping.  See CreateDIBSection
   // for details. If |shared_section| is null, the bitmap backing store is not
   // initialized.
   static BitmapPlatformDevice* Create(int width, int height,
-                                      bool is_opaque, HANDLE shared_section);
+                                      bool is_opaque, HANDLE shared_section,
+                                      bool do_clear = false);
 
   // Create a BitmapPlatformDevice with no shared section. The bitmap is not
   // initialized to 0.
   static BitmapPlatformDevice* Create(int width, int height, bool is_opaque);
 
-  // Creates a BitmapPlatformDevice instance respecting the parameters as above.
-  // If |is_opaque| is false, then the bitmap is initialzed to 0.
-  static BitmapPlatformDevice* CreateAndClear(int width, int height,
-                                              bool is_opaque);
-
   virtual ~BitmapPlatformDevice();
 
   // PlatformDevice overrides
   // Retrieves the bitmap DC, which is the memory DC for our bitmap data. The
   // bitmap DC is lazy created.
   virtual PlatformSurface BeginPlatformPaint() override;
   virtual void EndPlatformPaint() override;
 
   virtual void DrawToNativeContext(HDC dc, int x, int y,
                                    const RECT* src_rect) override;
@@ skipping 58 matching lines @@
 #ifdef SK_DEBUG
   int begin_paint_count_;
 #endif
 
   DISALLOW_COPY_AND_ASSIGN(BitmapPlatformDevice);
 };
 
 }  // namespace skia
 
 #endif  // SKIA_EXT_BITMAP_PLATFORM_DEVICE_WIN_H_