Revert "Revert of Add getReducedClipStack to lua canvas (https://codereview.chromium.org/180283004/…

src/gpu/GrReducedClip.h

Index: src/gpu/GrReducedClip.h
diff --git a/src/gpu/GrReducedClip.h b/src/gpu/GrReducedClip.h
index 0b79f2c7f56f266c3b9683dc70e678e5ba819b1b..cbb03465fd00fa19079324d7177929ddb93cd697 100644
--- a/src/gpu/GrReducedClip.h
+++ b/src/gpu/GrReducedClip.h
@@ -30,13 +30,14 @@ enum InitialState {
  * required to process any of the elements in the result.
  *
  * This may become a member function of SkClipStack when its interface is determined to be stable.
+ * Marked SK_API so that SkLua can call this in a shared library build.
  */
-void ReduceClipStack(const SkClipStack& stack,
-                     const SkIRect& queryBounds,
-                     ElementList* result,
-                     int32_t* resultGenID,
-                     InitialState* initialState,
-                     SkIRect* tighterBounds = NULL,
-                     bool* requiresAA = NULL);
+SK_API void ReduceClipStack(const SkClipStack& stack,
+                            const SkIRect& queryBounds,
+                            ElementList* result,
+                            int32_t* resultGenID,
+                            InitialState* initialState,
+                            SkIRect* tighterBounds = NULL,
+                            bool* requiresAA = NULL);
 
 } // namespace GrReducedClip