Revert of remove (dumb) canvas::NewRaster, and rename surface::NewRasterPMColor to N32Premul

tests/RecorderTest.cpp

Index: tests/RecorderTest.cpp
diff --git a/tests/RecorderTest.cpp b/tests/RecorderTest.cpp
index 7a2755699fcb318713927fb4d2ff611759b399bb..d81bf059ef34e38659910c52538df15c658651de 100644
--- a/tests/RecorderTest.cpp
+++ b/tests/RecorderTest.cpp
@@ -155,7 +155,7 @@
 
     SkAutoTUnref<SkImage> image;
     {
-        SkAutoTUnref<SkSurface> surface(SkSurface::NewRasterN32Premul(100, 100));
+        SkAutoTUnref<SkSurface> surface(SkSurface::NewRasterPMColor(100, 100));
         surface->getCanvas()->clear(SK_ColorGREEN);
         image.reset(surface->newImageSnapshot());
     }