Update skia to test with libpng to 1.6.10

dm/DMSrcSink.cpp

Index: dm/DMSrcSink.cpp
diff --git a/dm/DMSrcSink.cpp b/dm/DMSrcSink.cpp
index f766b49c79395acceaba2dbff4cec8794e46f43f..14e6034c12badc2415767b43596b5ece85772559 100644
--- a/dm/DMSrcSink.cpp
+++ b/dm/DMSrcSink.cpp
@@ -81,6 +81,7 @@ bool CodecSrc::veto(SinkFlags flags) const {
 }
 
 Error CodecSrc::draw(SkCanvas* canvas) const {
+    SkDebugf("\nCodec %s\n", fPath.c_str());

[scroggo, 2015/08/26 21:53:32]

I'm guessing we do not want these print statements checked in?

     SkAutoTUnref<SkData> encoded(SkData::NewFromFileName(fPath.c_str()));
     if (!encoded) {
         return SkStringPrintf("Couldn't read %s.", fPath.c_str());
@@ -495,6 +496,7 @@ Error ImageSrc::draw(SkCanvas* canvas) const {
     }
     const SkColorType dstColorType = canvas->imageInfo().colorType();
     if (fDivisor == 0) {
+        SkDebugf("\nImage %s\n", fPath.c_str());
         // Decode the full image.
         SkBitmap bitmap;
         if (!SkImageDecoder::DecodeMemory(encoded->data(), encoded->size(), &bitmap,
@@ -509,6 +511,7 @@ Error ImageSrc::draw(SkCanvas* canvas) const {
         canvas->drawBitmap(bitmap, 0,0);
         return "";
     }
+    SkDebugf("\nSubset %s\n", fPath.c_str());
     // Decode subsets.  This is a little involved.
     SkAutoTDelete<SkMemoryStream> stream(new SkMemoryStream(encoded));
     SkAutoTDelete<SkImageDecoder> decoder(SkImageDecoder::Factory(stream.get()));