SkBitmap move

src/core/SkCanvas.cpp

 /*
  * Copyright 2008 The Android Open Source Project
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkBitmapDevice.h"
 #include "SkCanvas.h"
 #include "SkCanvasPriv.h"
@@ skipping 667 matching lines @@
     , fConservativeRasterClip(false)
 {
     inc_canvas();
 
     this->init(nullptr, kDefault_InitFlags);
 }
 
 static SkBitmap make_nopixels(int width, int height) {
     SkBitmap bitmap;
     bitmap.setInfo(SkImageInfo::MakeUnknown(width, height));
-    return bitmap;
+    return skstd::move(bitmap);
 }
 
 class SkNoPixelsBitmapDevice : public SkBitmapDevice {
 public:
     SkNoPixelsBitmapDevice(const SkIRect& bounds, const SkSurfaceProps& surfaceProps)
         : INHERITED(make_nopixels(bounds.width(), bounds.height()), surfaceProps)
     {
         this->setOrigin(bounds.x(), bounds.y());
     }
 
@@ skipping 2305 matching lines @@
     }
 
     if (matrix) {
         canvas->concat(*matrix);
     }
 }
 
 SkAutoCanvasMatrixPaint::~SkAutoCanvasMatrixPaint() {
     fCanvas->restoreToCount(fSaveCount);
 }