need to rebaseline (changed) c_gms, update dox

include/core/SkImageGenerator.h

Index: include/core/SkImageGenerator.h
diff --git a/include/core/SkImageGenerator.h b/include/core/SkImageGenerator.h
index cbceaa230863ab93ee983bdf49be2717e280ff1b..2967974c7845cb95cfb6c5b7f2e3b0815fde9f88 100644
--- a/include/core/SkImageGenerator.h
+++ b/include/core/SkImageGenerator.h
@@ -36,7 +36,7 @@ class SkImageGenerator;
 SK_API bool SkInstallDiscardablePixelRef(SkImageGenerator*, SkBitmap* destination);
 
 /**
- *  On success, installs a discradable pixelref into destination, based on encoded data.
+ *  On success, installs a discardable pixelref into destination, based on encoded data.
  *  Regardless of success or failure, the caller must still balance their ownership of encoded.
  */
 SK_API bool SkInstallDiscardablePixelRef(SkData* encoded, SkBitmap* destination);