Parse input argument types and store the argument types in CSSPaintDefinition.

third_party/WebKit/Source/modules/csspaint/CSSPaintDefinition.h

Index: third_party/WebKit/Source/modules/csspaint/CSSPaintDefinition.h
diff --git a/third_party/WebKit/Source/modules/csspaint/CSSPaintDefinition.h b/third_party/WebKit/Source/modules/csspaint/CSSPaintDefinition.h
index 2b7ccfbc5ef4d790781df92da4b1fc4da010c723..fd9459cbe5c95c6c4a80a3e2b7356580471c8511 100644
--- a/third_party/WebKit/Source/modules/csspaint/CSSPaintDefinition.h
+++ b/third_party/WebKit/Source/modules/csspaint/CSSPaintDefinition.h
@@ -7,6 +7,7 @@
 
 #include "bindings/core/v8/ScopedPersistent.h"
 #include "core/CSSPropertyNames.h"
+#include "core/css/CSSSyntaxDescriptor.h"
 #include "platform/geometry/IntSize.h"
 #include "platform/heap/Handle.h"
 #include <v8.h>
@@ -28,6 +29,7 @@ class CSSPaintDefinition final
       v8::Local<v8::Function> paint,
       Vector<CSSPropertyID>&,
       Vector<AtomicString>& customInvalidationProperties,
+      Vector<CSSSyntaxDescriptor>& inputArgumentTypes,
       bool hasAlpha);
   virtual ~CSSPaintDefinition();
 
@@ -44,6 +46,9 @@ class CSSPaintDefinition final
   const Vector<AtomicString>& customInvalidationProperties() const {
     return m_customInvalidationProperties;
   }
+  const Vector<CSSSyntaxDescriptor>& inputArgumentTypes() const {
+    return m_inputArgumentTypes;
+  }
   bool hasAlpha() const { return m_hasAlpha; }
 
   ScriptState* getScriptState() const { return m_scriptState.get(); }
@@ -60,6 +65,7 @@ class CSSPaintDefinition final
                      v8::Local<v8::Function> paint,
                      Vector<CSSPropertyID>& nativeInvalidationProperties,
                      Vector<AtomicString>& customInvalidationProperties,
+                     Vector<CSSSyntaxDescriptor>& inputArgumentTypes,
                      bool hasAlpha);
 
   void maybeCreatePaintInstance();
@@ -79,6 +85,8 @@ class CSSPaintDefinition final
 
   Vector<CSSPropertyID> m_nativeInvalidationProperties;
   Vector<AtomicString> m_customInvalidationProperties;
+  // Input argument types, if applicable.
+  Vector<CSSSyntaxDescriptor> m_inputArgumentTypes;
   bool m_hasAlpha;
 };