Makes GrPipelineInfo a class with query functions used by GrBatch subclasses.

Committed: https://skia.googlesource.com/skia/+/f5179a4c490bc787190321bd8ffdb0e6a4efa9ac

Review URL: https://codereview.chromium.org/1213383005
diff --git a/src/gpu/GrDrawContext.cpp b/src/gpu/GrDrawContext.cpp
index f7d7e7b..b957b91 100644
--- a/src/gpu/GrDrawContext.cpp
+++ b/src/gpu/GrDrawContext.cpp
@@ -275,17 +275,16 @@
 
     void initBatchTracker(const GrPipelineInfo& init) override {
         // Handle any color overrides
-        if (init.fColorIgnored) {
+        if (!init.readsColor()) {
             fGeoData[0].fColor = GrColor_ILLEGAL;
-        } else if (GrColor_ILLEGAL != init.fOverrideColor) {
-            fGeoData[0].fColor = init.fOverrideColor;
         }
+        init.getOverrideColorIfSet(&fGeoData[0].fColor);
 
         // setup batch properties
-        fBatch.fColorIgnored = init.fColorIgnored;
+        fBatch.fColorIgnored = !init.readsColor();
         fBatch.fColor = fGeoData[0].fColor;
-        fBatch.fUsesLocalCoords = init.fUsesLocalCoords;
-        fBatch.fCoverageIgnored = init.fCoverageIgnored;
+        fBatch.fUsesLocalCoords = init.readsLocalCoords();
+        fBatch.fCoverageIgnored = !init.readsCoverage();
     }
 
     void generateGeometry(GrBatchTarget* batchTarget, const GrPipeline* pipeline) override {
@@ -614,17 +613,16 @@
 
     void initBatchTracker(const GrPipelineInfo& init) override {
         // Handle any color overrides
-        if (init.fColorIgnored) {
+        if (!init.readsColor()) {
             fGeoData[0].fColor = GrColor_ILLEGAL;
-        } else if (GrColor_ILLEGAL != init.fOverrideColor) {
-            fGeoData[0].fColor = init.fOverrideColor;
         }
+        init.getOverrideColorIfSet(&fGeoData[0].fColor);
 
         // setup batch properties
-        fBatch.fColorIgnored = init.fColorIgnored;
+        fBatch.fColorIgnored = !init.readsColor();
         fBatch.fColor = fGeoData[0].fColor;
-        fBatch.fUsesLocalCoords = init.fUsesLocalCoords;
-        fBatch.fCoverageIgnored = init.fCoverageIgnored;
+        fBatch.fUsesLocalCoords = init.readsLocalCoords();
+        fBatch.fCoverageIgnored = !init.readsCoverage();
     }
 
     void generateGeometry(GrBatchTarget* batchTarget, const GrPipeline* pipeline) override {