Outline SkImageFilter Make methods

src/effects/SkImageSource.cpp

Index: src/effects/SkImageSource.cpp
diff --git a/src/effects/SkImageSource.cpp b/src/effects/SkImageSource.cpp
index 223c2a7b4bb96a3f870eec85ea345d06af33f062..e00bced4c4912b642ae70305d69b9d936503e20c 100644
--- a/src/effects/SkImageSource.cpp
+++ b/src/effects/SkImageSource.cpp
@@ -15,6 +15,26 @@
 #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)