Remove unused BitmapPlatformDevice::CreateAndClear()

skia/ext/bitmap_platform_device_cairo.h

 // Copyright 2013 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_CAIRO_H_
 #define SKIA_EXT_BITMAP_PLATFORM_DEVICE_CAIRO_H_
 
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
 #include "base/memory/ref_counted.h"
@@ skipping 54 matching lines @@
   //
   // This object takes ownership of @cairo.
   BitmapPlatformDevice(const SkBitmap& other, cairo_t* cairo);
   ~BitmapPlatformDevice() override;
 
   // Constructs a device with size |width| * |height| with contents initialized
   // to zero. |is_opaque| should be set if the caller knows the bitmap will be
   // completely opaque and allows some optimizations.
   static BitmapPlatformDevice* Create(int width, int height, bool is_opaque);
 
-  // Performs the same construction as Create.
-  // Other ports require a separate construction routine because Create does not
-  // initialize the bitmap to 0.
-  static BitmapPlatformDevice* CreateAndClear(int width, int height,
-                                              bool is_opaque);
-
   // This doesn't take ownership of |data|. If |data| is NULL, the contents
   // of the device are initialized to 0.
   static BitmapPlatformDevice* Create(int width, int height, bool is_opaque,
                                       uint8_t* data);
 
   // Overridden from SkBaseDevice:
   void setMatrixClip(const SkMatrix& transform,
                      const SkRegion& region,
                      const SkClipStack&) override;
 
@@ skipping 30 matching lines @@
 
   // The current clipping
   SkRegion clip_region_;
 
   DISALLOW_COPY_AND_ASSIGN(BitmapPlatformDevice);
 };
 
 }  // namespace skia
 
 #endif  // SKIA_EXT_BITMAP_PLATFORM_DEVICE_CAIRO_H_