add newImage API

include/core/SkPaint.h

Index: include/core/SkPaint.h
diff --git a/include/core/SkPaint.h b/include/core/SkPaint.h
index 68220f65c9c25519b1884c155adc8f632478cf4b..63011d7e4e9d80925a64b42d988590bda5c43720 100644
--- a/include/core/SkPaint.h
+++ b/include/core/SkPaint.h
@@ -10,6 +10,7 @@
 
 #include "SkColor.h"
 #include "SkDrawLooper.h"
+#include "SkFilterQuality.h"
 #include "SkMatrix.h"
 #include "SkXfermode.h"
 
@@ -295,10 +296,10 @@ public:
     void setDistanceFieldTextTEMP(bool distanceFieldText);
 
     enum FilterLevel {
-        kNone_FilterLevel,
-        kLow_FilterLevel,
-        kMedium_FilterLevel,
-        kHigh_FilterLevel
+        kNone_FilterLevel   = kNone_SkFilterQuality,
+        kLow_FilterLevel    = kLow_SkFilterQuality,
+        kMedium_FilterLevel = kMedium_SkFilterQuality,
+        kHigh_FilterLevel   = kHigh_SkFilterQuality
     };
 
     /**
@@ -316,6 +317,14 @@ public:
     void setFilterLevel(FilterLevel);
 
     /**
+     *  Set the filter quality. This affects the quality (and performance) of
+     *  drawing scaled images.
+     */
+    void setFilterQuality(SkFilterQuality quality) {

[scroggo, 2015/01/05 16:15:33]

Do we need both? (enums and methods)

[reed1, 2015/01/05 21:58:14]

For now we need filterlevel, until we decided to update existing callers (which
are many).
https://code.google.com/p/skia/issues/detail?id=3284

[scroggo, 2015/01/05 22:12:02]

Should we go ahead and use a #define to stage?

[reed1, 2015/01/20 22:23:08]

Started too fix all of skia internally, but it is very large, and will make it
hard to separate reviewing that syntactic change from this functional change. I
propose doing that in a follow-on CL.

+        this->setFilterLevel(static_cast<FilterLevel>(quality));
+    }
+
+    /**
      *  If the predicate is true, set the filterLevel to Low, else set it to
      *  None.
      */