Revert "hide nested hinting enum"

This reverts commit fbebecee0eb99338e1b08422842aba6ab724e243.

Reason for revert: need staging guard for flutter

Original change's description:
> hide nested hinting enum
> 
> Bug: skia:2664
> Bug: skia:8527
> Change-Id: I8f4b832d5524fb792bcc608d6bd515229881b048
> Reviewed-on: https://skia-review.googlesource.com/c/168270
> Commit-Queue: Mike Reed <reed@google.com>
> Reviewed-by: Florin Malita <fmalita@chromium.org>

TBR=fmalita@chromium.org,reed@google.com

Change-Id: I19496daa059932574f36ac47061068a81d5524c3
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: skia:2664, skia:8527
Reviewed-on: https://skia-review.googlesource.com/c/169344
Reviewed-by: Mike Reed <reed@google.com>
Commit-Queue: Mike Reed <reed@google.com>
diff --git a/tools/debugger/SkDrawCommand.cpp b/tools/debugger/SkDrawCommand.cpp
index 229cd49..be506e7 100644
--- a/tools/debugger/SkDrawCommand.cpp
+++ b/tools/debugger/SkDrawCommand.cpp
@@ -791,19 +791,19 @@
 }
 
 static void apply_paint_hinting(const SkPaint& paint, Json::Value* target) {
-    SkFontHinting hinting = (SkFontHinting)paint.getHinting();
+    SkPaint::Hinting hinting = paint.getHinting();
     if (hinting != SkPaintDefaults_Hinting) {
         switch (hinting) {
-            case kNo_SkFontHinting:
+            case SkPaint::kNo_Hinting:
                 (*target)[SKDEBUGCANVAS_ATTRIBUTE_HINTING] = SKDEBUGCANVAS_HINTING_NONE;
                 break;
-            case kSlight_SkFontHinting:
+            case SkPaint::kSlight_Hinting:
                 (*target)[SKDEBUGCANVAS_ATTRIBUTE_HINTING] = SKDEBUGCANVAS_HINTING_SLIGHT;
                 break;
-            case kNormal_SkFontHinting:
+            case SkPaint::kNormal_Hinting:
                 (*target)[SKDEBUGCANVAS_ATTRIBUTE_HINTING] = SKDEBUGCANVAS_HINTING_NORMAL;
                 break;
-            case kFull_SkFontHinting:
+            case SkPaint::kFull_Hinting:
                 (*target)[SKDEBUGCANVAS_ATTRIBUTE_HINTING] = SKDEBUGCANVAS_HINTING_FULL;
                 break;
         }