Revert of Lots of progress switching to SkColorSpace rather than SkColorProfileType

tools/picture_utils.cpp

Index: tools/picture_utils.cpp
diff --git a/tools/picture_utils.cpp b/tools/picture_utils.cpp
index a6803c67db42efdb26d5a4d8a50869860350a65c..63a48ce3e17b61749ecde00178d609fa98795fa3 100644
--- a/tools/picture_utils.cpp
+++ b/tools/picture_utils.cpp
@@ -80,9 +80,8 @@
 
         SkAutoTMalloc<uint32_t> rgba(w*h);
 
-        auto srgbColorSpace = SkColorSpace::NewNamed(SkColorSpace::kSRGB_Named);
-        if (bitmap. colorType() ==  kN32_SkColorType &&
-            bitmap.colorSpace() == srgbColorSpace.get()) {
+        if (bitmap.  colorType() ==  kN32_SkColorType &&
+            bitmap.profileType() == kSRGB_SkColorProfileType) {
             // These are premul sRGB 8-bit pixels in SkPMColor order.
             // We want unpremul sRGB 8-bit pixels in RGBA order.  We'll get there via floats.
             bitmap.lockPixels();