diff --git a/include/core/SkSurface.h b/include/core/SkSurface.h
index 8e7e148cb9..bb3f719754 100644
--- a/include/core/SkSurface.h
+++ b/include/core/SkSurface.h
@@ -51,14 +51,10 @@ public:
                                                  void* context, const SkSurfaceProps* = nullptr);
 
     /**
-     *  Return a new surface, with the memory for the pixels automatically allocated but respecting
-     *  the specified rowBytes. If rowBytes==0, then a default value will be chosen. If a non-zero
-     *  rowBytes is specified, then any images snapped off of this surface (via makeImageSnapshot())
-     *  are guaranteed to have the same rowBytes.
-     *
-     *  If the requested alpha type is not opaque, then the surface's pixel memory will be
-     *  zero-initialized. If it is opaque, then it will be left uninitialized, and the caller is
-     *  responsible for initially clearing the surface.
+     *  Return a new surface, with the memory for the pixels automatically allocated and
+     *  zero-initialized, but respecting the specified rowBytes. If rowBytes==0, then a default
+     *  value will be chosen. If a non-zero rowBytes is specified, then any images snapped off of
+     *  this surface (via makeImageSnapshot()) are guaranteed to have the same rowBytes.
      *
      *  If the requested surface cannot be created, or the request is not a
      *  supported configuration, NULL will be returned.
diff --git a/src/image/SkSurface_Raster.cpp b/src/image/SkSurface_Raster.cpp
index 2b2bf64526..f2cb94a04f 100644
--- a/src/image/SkSurface_Raster.cpp
+++ b/src/image/SkSurface_Raster.cpp
@@ -208,11 +208,7 @@ sk_sp<SkSurface> SkSurface::MakeRaster(const SkImageInfo& info, size_t rowBytes,
         return nullptr;
     }
 
-    // If the requested alpha type is opaque, then leave the pixels uninitialized.
-    // Alpha formats can be safely initialiezd to zero.
-    SkAutoTUnref<SkPixelRef> pr(info.isOpaque()
-                                ? SkMallocPixelRef::NewAllocate(info, rowBytes, nullptr)
-                                : SkMallocPixelRef::NewZeroed(info, rowBytes, nullptr));
+    SkAutoTUnref<SkPixelRef> pr(SkMallocPixelRef::NewZeroed(info, rowBytes, nullptr));
     if (nullptr == pr.get()) {
         return nullptr;
     }