Make BitmapRegionDecoder succeed on invalid requests

src/android/SkBitmapRegionCanvas.cpp

Index: src/android/SkBitmapRegionCanvas.cpp
diff --git a/src/android/SkBitmapRegionCanvas.cpp b/src/android/SkBitmapRegionCanvas.cpp
index bac5dc1ffc7995fa57cb954f5db2987cf99a71c1..c7c42bd9a25c0bfa759178e9c3b04e6dad0bfff8 100644
--- a/src/android/SkBitmapRegionCanvas.cpp
+++ b/src/android/SkBitmapRegionCanvas.cpp
@@ -18,6 +18,7 @@ SkBitmapRegionCanvas::SkBitmapRegionCanvas(SkCodec* decoder)
 bool SkBitmapRegionCanvas::decodeRegion(SkBitmap* bitmap, SkBRDAllocator* allocator,
         const SkIRect& desiredSubset, int sampleSize, SkColorType dstColorType,
         bool requireUnpremul) {
+
     // Reject color types not supported by this method
     if (kIndex_8_SkColorType == dstColorType || kGray_8_SkColorType == dstColorType) {
         SkCodecPrintf("Error: Color type not supported.\n");
@@ -34,8 +35,6 @@ bool SkBitmapRegionCanvas::decodeRegion(SkBitmap* bitmap, SkBRDAllocator* alloca
         dstAlphaType = kPremul_SkAlphaType;
     }
 
-    // FIXME: Can we add checks and support kIndex8 or unpremultiplied alpha in special cases?
-
     // Fix the input sampleSize if necessary.
     if (sampleSize < 1) {
         sampleSize = 1;