Fix SampleLua build

Change-Id: Ie0114ab16b99aed4343f6255dbc86fb15554ea74
Reviewed-on: https://skia-review.googlesource.com/83380
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: Florin Malita <fmalita@chromium.org>
diff --git a/samplecode/SampleLua.cpp b/samplecode/SampleLua.cpp
index 848a942..2c94e81 100644
--- a/samplecode/SampleLua.cpp
+++ b/samplecode/SampleLua.cpp
@@ -25,8 +25,6 @@
 static const char gClickName[] = "onClickHandler";
 static const char gUnicharName[] = "onCharHandler";
 
-static const char gLuaClickHandlerName[] = "lua-click-handler";
-
 static const char gMissingCode[] = ""
     "local paint = Sk.newPaint()"
     "paint:setAntiAlias(true)"
@@ -89,7 +87,6 @@
                     SkDebugf("lua err: %s\n", lua_tostring(L, -1));
                 } else {
                     if (lua_isboolean(L, -1) && lua_toboolean(L, -1)) {
-                        this->inval(nullptr);
                         return true;
                     }
                 }
@@ -114,10 +111,6 @@
             fLua->pushScalar(this->height());
             if (lua_pcall(L, 3, 1, 0) != LUA_OK) {
                 SkDebugf("lua err: %s\n", lua_tostring(L, -1));
-            } else {
-                if (lua_isboolean(L, -1) && lua_toboolean(L, -1)) {
-                    this->inval(nullptr);
-                }
             }
         }
     }
@@ -134,10 +127,7 @@
                 SkDebugf("lua err: %s\n", lua_tostring(L, -1));
             } else {
                 if (lua_isboolean(L, -1) && lua_toboolean(L, -1)) {
-                    this->inval(nullptr);
-                    Click* c = new Click(this);
-                    c->setType(gLuaClickHandlerName);
-                    return c;
+                    return new Click(this);
                 }
             }
         }
@@ -145,10 +135,6 @@
     }
 
     bool onClick(Click* click) override {
-        if (click->getType() != gLuaClickHandlerName) {
-            return this->INHERITED::onClick(click);
-        }
-
         const char* state = nullptr;
         switch (click->fState) {
             case Click::kMoved_State:
@@ -161,7 +147,6 @@
                 break;
         }
         if (state) {
-            this->inval(nullptr);
             lua_State* L = fLua->get();
             lua_getglobal(L, gClickName);
             fLua->pushScalar(click->fCurr.x());