Remove unused MakeFromTextureCopy API

src/image/SkImage_Gpu.cpp

 /*
  * Copyright 2012 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkAutoPixmapStorage.h"
 #include "GrCaps.h"
 #include "GrContext.h"
@@ skipping 165 matching lines @@
                                         SkAlphaType at, TextureReleaseProc releaseP,
                                         ReleaseContext releaseC) {
     return new_wrapped_texture_common(ctx, desc, at, kBorrow_GrWrapOwnership, releaseP, releaseC);
 }
 
 sk_sp<SkImage> SkImage::MakeFromAdoptedTexture(GrContext* ctx, const GrBackendTextureDesc& desc,
                                                SkAlphaType at) {
     return new_wrapped_texture_common(ctx, desc, at, kAdopt_GrWrapOwnership, nullptr, nullptr);
 }
 
-sk_sp<SkImage> SkImage::MakeFromTextureCopy(GrContext* ctx, const GrBackendTextureDesc& desc,
-                                            SkAlphaType at) {
-    if (desc.fWidth <= 0 || desc.fHeight <= 0) {
-        return nullptr;
-    }
-
-    SkAutoTUnref<GrTexture> src(ctx->textureProvider()->wrapBackendTexture(
-        desc, kBorrow_GrWrapOwnership));
-    if (!src) {
-        return nullptr;
-    }
-
-    SkAutoTUnref<GrTexture> dst(GrDeepCopyTexture(src, SkBudgeted::kYes));
-    if (!dst) {
-        return nullptr;
-    }
-
-    return sk_make_sp<SkImage_Gpu>(desc.fWidth, desc.fHeight, kNeedNewImageUniqueID, at, dst,
-                                   SkBudgeted::kYes);
-}
-
 static sk_sp<SkImage> make_from_yuv_textures_copy(GrContext* ctx, SkYUVColorSpace colorSpace,
                                                   bool nv12,
                                                   const GrBackendObject yuvTextureHandles[],
                                                   const SkISize yuvSizes[],
                                                   GrSurfaceOrigin origin) {
     const SkBudgeted budgeted = SkBudgeted::kYes;
 
     if (yuvSizes[0].fWidth <= 0 || yuvSizes[0].fHeight <= 0 || yuvSizes[1].fWidth <= 0 ||
         yuvSizes[1].fHeight <= 0) {
         return nullptr;
@@ skipping 343 matching lines @@
     if (!ctx) {
         return nullptr;
     }
     SkAutoTUnref<GrTexture> texture(GrUploadMipMapToTexture(ctx, info, texels, mipLevelCount));
     if (!texture) {
         return nullptr;
     }
     return sk_make_sp<SkImage_Gpu>(texture->width(), texture->height(), kNeedNewImageUniqueID,
                                    info.alphaType(), texture, budgeted);
 }