added support for PLS path rendering

include/gpu/GrCaps.h

Index: include/gpu/GrCaps.h
diff --git a/include/gpu/GrCaps.h b/include/gpu/GrCaps.h
index e2e59c30a4c7701b1f85e3174262982c6f006484..05da8d7cadf40d5af5eafa185b03ad761c8b7029 100644
--- a/include/gpu/GrCaps.h
+++ b/include/gpu/GrCaps.h
@@ -81,6 +81,24 @@ public:
     */
     bool floatPrecisionVaries() const { return fShaderPrecisionVaries; }
 
+    /**
+     * PLS storage size in bytes (0 when not supported). The PLS spec defines a minimum size of 16 
+     * bytes whenever PLS is supported.
+     */
+    int pixelLocalStorageSize() const { return fPixelLocalStorageSize; }
+
+    /**
+     * True if this context supports the necessary extensions and features to enable the PLS path
+     * renderer.
+     */
+    bool plsPathRenderingSupport() const { 
+#if GR_ENABLE_PLS_PATH_RENDERING
+        return fPLSPathRenderingSupport;
+#else
+        return false;
+#endif
+    }
+
 protected:
     /** Subclasses must call this after initialization in order to apply caps overrides requested by
         the client. Note that overrides will only reduce the caps never expand them. */
@@ -94,6 +112,8 @@ protected:
 
     bool fShaderPrecisionVaries;
     PrecisionInfo fFloatPrecisions[kGrShaderTypeCount][kGrSLPrecisionCount];
+    int fPixelLocalStorageSize;
+    bool fPLSPathRenderingSupport;
 
 private:
     virtual void onApplyOptionsOverrides(const GrContextOptions&) {};