add more typeface methods to lua

BUG=skia:
NOTRY=True
TBR=

Review URL: https://codereview.chromium.org/697053004
diff --git a/resources/slides.lua b/resources/slides.lua
index cf1a1a6..df9fc47 100644
--- a/resources/slides.lua
+++ b/resources/slides.lua
@@ -110,7 +110,7 @@
         local blob, newBottom = Sk.newTextBlob(node.text, bounds, paint)
         draw_bullet(canvas, x + x_offset, y - fm.ascent, paint, node.indent)
         canvas:drawTextBlob(blob, 0, 0, paint)
-        y = newBottom + paint:getTextSize() * .5
+        y = newBottom + paint:getTextSize() * .5 + extra_dy
 
         if gShowBounds then
             bounds.bottom = newBottom
@@ -141,8 +141,8 @@
         margin_y = 25,
     }
     slide[1] = make_tmpl(make_paint("Arial", 1, 35, { a=1, r=1, g=1, b=1 }), 18)
-    slide[2] = make_tmpl(make_paint("Arial", 0, 25, { a=1, r=1, g=1, b=1 }), 0)
-    slide[3] = make_tmpl(make_paint("Arial", 0, 20, { a=1, r=.9, g=.9, b=.9 }), 0)
+    slide[2] = make_tmpl(make_paint("Arial", 0, 25, { a=1, r=1, g=1, b=1 }), 10)
+    slide[3] = make_tmpl(make_paint("Arial", 0, 20, { a=1, r=.9, g=.9, b=.9 }), 5)
 
     return {
         title = title,
diff --git a/src/utils/SkLua.cpp b/src/utils/SkLua.cpp
index 7491086..967233d 100644
--- a/src/utils/SkLua.cpp
+++ b/src/utils/SkLua.cpp
@@ -806,6 +806,11 @@
     return 1;
 }
 
+static int lpaint_setLCDRenderText(lua_State* L) {
+    get_obj<SkPaint>(L, 1)->setLCDRenderText(lua2bool(L, 2));
+    return 1;
+}
+
 static int lpaint_isEmbeddedBitmapText(lua_State* L) {
     lua_pushboolean(L, get_obj<SkPaint>(L, 1)->isEmbeddedBitmapText());
     return 1;
@@ -1075,6 +1080,7 @@
     { "setSubpixelText", lpaint_setSubpixelText },
     { "isDevKernText", lpaint_isDevKernText },
     { "isLCDRenderText", lpaint_isLCDRenderText },
+    { "setLCDRenderText", lpaint_setLCDRenderText },
     { "isEmbeddedBitmapText", lpaint_isEmbeddedBitmapText },
     { "isAutohinted", lpaint_isAutohinted },
     { "isVerticalText", lpaint_isVerticalText },
@@ -1731,12 +1737,26 @@
 
 ///////////////////////////////////////////////////////////////////////////////
 
+static int ltypeface_getFamilyName(lua_State* L) {
+    SkString str;
+    get_ref<SkTypeface>(L, 1)->getFamilyName(&str);
+    lua_pushstring(L, str.c_str());
+    return 1;
+}
+
+static int ltypeface_getStyle(lua_State* L) {
+    lua_pushnumber(L, (double)get_ref<SkTypeface>(L, 1)->style());
+    return 1;
+}
+
 static int ltypeface_gc(lua_State* L) {
     SkSafeUnref(get_ref<SkTypeface>(L, 1));
     return 0;
 }
 
 static const struct luaL_Reg gSkTypeface_Methods[] = {
+    { "getFamilyName", ltypeface_getFamilyName },
+    { "getStyle", ltypeface_getStyle },
     { "__gc", ltypeface_gc },
     { NULL, NULL }
 };