Fix some lingering typos

src/effects/SkBitmapSource.cpp

Index: src/effects/SkBitmapSource.cpp
diff --git a/src/effects/SkBitmapSource.cpp b/src/effects/SkBitmapSource.cpp
index 2624229aee60f76345e60072577c4e590836f173..ed9521fd2c215bce1e3d80aa4c3f21b7f4b737b6 100644
--- a/src/effects/SkBitmapSource.cpp
+++ b/src/effects/SkBitmapSource.cpp
@@ -33,7 +33,7 @@ SkBitmapSource::SkBitmapSource(const SkBitmap& bitmap,
 
 SkFlattenable* SkBitmapSource::CreateProc(SkReadBuffer& buffer) {
     SkFilterQuality filterQuality;
-    if (buffer.isVersionLT(SkReadBuffer::kBitmapourceFilterQuality_Version)) {
+    if (buffer.isVersionLT(SkReadBuffer::kBitmapSourceFilterQuality_Version)) {
         filterQuality = kHigh_SkFilterQuality;
     } else {
         filterQuality = (SkFilterQuality)buffer.readInt();