Outline SkImageFilter Make methods

src/effects/SkImageSource.cpp

 /*
  * Copyright 2015 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkImageSource.h"
 
 #include "SkCanvas.h"
 #include "SkImage.h"
 #include "SkReadBuffer.h"
 #include "SkSpecialImage.h"
 #include "SkSpecialSurface.h"
 #include "SkWriteBuffer.h"
 #include "SkString.h"
 
+sk_sp<SkImageFilter> SkImageSource::Make(sk_sp<SkImage> image) {
+    if (!image) {
+        return nullptr;
+    }
+
+    return sk_sp<SkImageFilter>(new SkImageSource(std::move(image)));
+}
+
+sk_sp<SkImageFilter> SkImageSource::Make(sk_sp<SkImage> image,
+                                         const SkRect& srcRect,
+                                         const SkRect& dstRect,
+                                         SkFilterQuality filterQuality) {
+    if (!image) {
+        return nullptr;
+    }
+
+    return sk_sp<SkImageFilter>(new SkImageSource(std::move(image),
+                                                  srcRect, dstRect,
+                                                  filterQuality));
+}
 
 SkImageSource::SkImageSource(sk_sp<SkImage> image)
     : INHERITED(nullptr, 0, nullptr)
     , fImage(std::move(image))
     , fSrcRect(SkRect::MakeIWH(fImage->width(), fImage->height()))
     , fDstRect(fSrcRect)
     , fFilterQuality(kHigh_SkFilterQuality) {
 }
 
 SkImageSource::SkImageSource(sk_sp<SkImage> image,
@@ skipping 87 matching lines @@
 void SkImageSource::toString(SkString* str) const {
     str->appendf("SkImageSource: (");
     str->appendf("src: (%f,%f,%f,%f) dst: (%f,%f,%f,%f) ",
                  fSrcRect.fLeft, fSrcRect.fTop, fSrcRect.fRight, fSrcRect.fBottom,
                  fDstRect.fLeft, fDstRect.fTop, fDstRect.fRight, fDstRect.fBottom);
     str->appendf("image: (%d,%d)",
                  fImage->width(), fImage->height());
     str->append(")");
 }
 #endif