Cleanup of code that converts from GPU-backed resources to SkImageInfo

src/gpu/GrSurface.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 "GrSurface.h"
 #include "GrContext.h"
 #include "GrSurfacePriv.h"
@@ skipping 98 matching lines @@
                            uint32_t pixelOpsFlags) {
     // go through context so that all necessary flushing occurs
     GrContext* context = this->getContext();
     if (nullptr == context) {
         return false;
     }
     return context->readSurfacePixels(this, left, top, width, height, config, buffer,
                                       rowBytes, pixelOpsFlags);
 }
 
-SkImageInfo GrSurface::info(SkAlphaType alphaType) const {
-    SkColorType colorType;
-    sk_sp<SkColorSpace> colorSpace;
-    if (!GrPixelConfigToColorAndColorSpace(this->config(), &colorType, &colorSpace)) {
-        sk_throw();
-    }
-    return SkImageInfo::Make(this->width(), this->height(), colorType, alphaType, colorSpace);
-}
-
 // TODO: This should probably be a non-member helper function. It might only be needed in
 // debug or developer builds.
 bool GrSurface::savePixels(const char* filename) {
     SkBitmap bm;
     if (!bm.tryAllocPixels(SkImageInfo::MakeN32Premul(this->width(), this->height()))) {
         return false;
     }
 
     bool result = this->readPixels(0, 0, this->width(), this->height(), kSkia8888_GrPixelConfig,
                                    bm.getPixels());
@@ skipping 64 matching lines @@
 
 void GrSurface::onRelease() {
     this->invokeReleaseProc();
     this->INHERITED::onRelease();
 }
 
 void GrSurface::onAbandon() {
     this->invokeReleaseProc();
     this->INHERITED::onAbandon();
 }