added support for PLS path rendering

tests/GrPorterDuffTest.cpp

Index: tests/GrPorterDuffTest.cpp
diff --git a/tests/GrPorterDuffTest.cpp b/tests/GrPorterDuffTest.cpp
index 5755c8154564f93ce16d898a6f7bfb3be8e83168..077f27ca3e791d07fae99e5d98358e7bf9bc8af6 100644
--- a/tests/GrPorterDuffTest.cpp
+++ b/tests/GrPorterDuffTest.cpp
@@ -98,6 +98,7 @@ static void test_lcd_coverage(skiatest::Reporter* reporter, const GrCaps& caps)
     opt.fColorPOI.calcWithInitialValues(NULL, 0, 0, kNone_GrColorComponentFlags, false);
     // Setting 2nd to last value to false and last to true will force covPOI to LCD coverage.
     opt.fCoveragePOI.calcWithInitialValues(NULL, 0, 0, kNone_GrColorComponentFlags, false, true);
+    opt.fOverrides.fUsePLSDstRead = false;
 
     SkASSERT(!opt.fColorPOI.isOpaque());
     SkASSERT(!opt.fColorPOI.isSolidWhite());
@@ -290,6 +291,7 @@ static void test_color_unknown_with_coverage(skiatest::Reporter* reporter, const
                                                   false);
     optimizations.fCoveragePOI.calcWithInitialValues(nullptr, 0, 0, kNone_GrColorComponentFlags, 
                                                      true);
+    optimizations.fOverrides.fUsePLSDstRead = false;
 
     SkASSERT(!optimizations.fColorPOI.isOpaque());
     SkASSERT(!optimizations.fColorPOI.isSolidWhite());
@@ -484,6 +486,7 @@ static void test_color_unknown_no_coverage(skiatest::Reporter* reporter, const G
                                    kR_GrColorComponentFlag | kB_GrColorComponentFlag, false);
     optimizations.fCoveragePOI.calcWithInitialValues(nullptr, 0, GrColorPackA4(255), 
                                                      kRGBA_GrColorComponentFlags, true);
+    optimizations.fOverrides.fUsePLSDstRead = false;
 
     SkASSERT(!optimizations.fColorPOI.isOpaque());
     SkASSERT(!optimizations.fColorPOI.isSolidWhite());
@@ -688,6 +691,7 @@ static void test_color_opaque_with_coverage(skiatest::Reporter* reporter, const
                                                   kA_GrColorComponentFlag, false);
     optimizations.fCoveragePOI.calcWithInitialValues(nullptr, 0, 0, kNone_GrColorComponentFlags, 
                                                      true);
+    optimizations.fOverrides.fUsePLSDstRead = false;
 
     SkASSERT(optimizations.fColorPOI.isOpaque());
     SkASSERT(!optimizations.fColorPOI.isSolidWhite());
@@ -887,6 +891,7 @@ static void test_color_opaque_no_coverage(skiatest::Reporter* reporter, const Gr
                                    kG_GrColorComponentFlag | kA_GrColorComponentFlag, false);
     optimizations.fCoveragePOI.calcWithInitialValues(nullptr, 0, GrColorPackA4(255), 
                                                      kRGBA_GrColorComponentFlags, true);
+    optimizations.fOverrides.fUsePLSDstRead = false;
 
     SkASSERT(optimizations.fColorPOI.isOpaque());
     SkASSERT(!optimizations.fColorPOI.isSolidWhite());
@@ -1103,9 +1108,7 @@ static void test_lcd_coverage_fallback_case(skiatest::Reporter* reporter, const
                                           GrBatchToXPOverrides* overrides) const override {
             color->setKnownFourComponents(GrColorPackRGBA(123, 45, 67, 221));
             coverage->setUnknownFourComponents();
-            coverage->setUsingLCDCoverage();
-            overrides->fUsePLSDstRead = false;
-        }
+            coverage->setUsingLCDCoverage();        }
 
         const char* name() const override { return "Test LCD Text Batch"; }
         void initBatchTracker(const GrXPOverridesForBatch&) override {}