Fix bug with GrAtlasTextContext color regen

src/gpu/batches/GrAtlasTextBatch.cpp

Index: src/gpu/batches/GrAtlasTextBatch.cpp
diff --git a/src/gpu/batches/GrAtlasTextBatch.cpp b/src/gpu/batches/GrAtlasTextBatch.cpp
index 3f3a521794f00d9782778614ca5dcea9a46bb918..d7f59a95c1ea07c4c750c1ae98e4c9af0cd03f12 100644
--- a/src/gpu/batches/GrAtlasTextBatch.cpp
+++ b/src/gpu/batches/GrAtlasTextBatch.cpp
@@ -203,8 +203,8 @@ inline void GrAtlasTextBatch::regenBlob(Target* target, FlushInfo* flushInfo, Bl
         flushInfo->fGlyphsToFlush++;
     }
 
-    // We my have changed the color so update it here
-    run->fColor = color;
+    // We may have changed the color so update it here
+    info->setColor(color);
     if (regenTexCoords) {
         if (regenGlyphs) {
             info->setStrike(strike);
@@ -378,7 +378,7 @@ void GrAtlasTextBatch::onPrepareDraws(Target* target) const {
         bool regenerateTextureCoords = info.atlasGeneration() != currentAtlasGen ||
                                        regenerateGlyphs;
         bool regenerateColors = kARGB_GrMaskFormat != maskFormat &&
-                                run.fColor != args.fColor;
+                                info.color() != args.fColor;
         bool regeneratePositions = args.fTransX != 0.f || args.fTransY != 0.f;
         int glyphCount = info.glyphCount();