Revert of remove guarded code - there are no more callers (https://codereview.chromium.org/343783002/)

Reason for revert:
webkit still uses getTotalClip -- need to find where they define the guard.

../../skia/ext/skia_utils_mac.mm:400:42: error: no member named 'getTotalClip' in 'SkCanvas'
      const SkRegion& clipRgn = canvas_->getTotalClip();
                                ~~~~~~~  ^

Original issue's description:
> remove guarded code - there are no more callers
>
> BUG=skia:
>
> Committed: https://skia.googlesource.com/skia/+/c5d5cf9489977aa6fba077d1dc242029fbb4859e

R=scroggo@google.com, reed@google.com
TBR=reed@google.com, scroggo@google.com
NOTREECHECKS=true
NOTRY=true
BUG=skia:

Author: reed@chromium.org

Review URL: https://codereview.chromium.org/342843002

1 files changed, 26 insertions, 4 deletions

diff --git a/include/effects/SkLayerRasterizer.h b/include/effects/SkLayerRasterizer.h
index c061be689d..9d4c8239f2 100644
--- a/include/effects/SkLayerRasterizer.h
+++ b/include/effects/SkLayerRasterizer.h
@@ -1,3 +1,4 @@
+
 /*
  * Copyright 2006 The Android Open Source Project
  *
@@ -5,6 +6,7 @@
  * found in the LICENSE file.
  */
 
+
 #ifndef SkLayerRasterizer_DEFINED
 #define SkLayerRasterizer_DEFINED
 
@@ -62,9 +64,24 @@ public:
         SkDeque* fLayers;
     };
 
+#ifdef SK_SUPPORT_LEGACY_LAYERRASTERIZER_API
+    void addLayer(const SkPaint& paint) {
+        this->addLayer(paint, 0, 0);
+    }
+
+    /**    Add a new layer (above any previous layers) to the rasterizer.
+        The layer will extract those fields that affect the mask from
+        the specified paint, but will not retain a reference to the paint
+        object itself, so it may be reused without danger of side-effects.
+    */
+    void addLayer(const SkPaint& paint, SkScalar dx, SkScalar dy);
+#endif
+
     SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkLayerRasterizer)
 
 protected:
+    SkLayerRasterizer(SkDeque* layers);
+    SkLayerRasterizer(SkReadBuffer&);
     virtual void flatten(SkWriteBuffer&) const SK_OVERRIDE;
 
     // override from SkRasterizer
@@ -72,12 +89,17 @@ protected:
                              const SkIRect* clipBounds,
                              SkMask* mask, SkMask::CreateMode mode) const;
 
+#ifdef SK_SUPPORT_LEGACY_LAYERRASTERIZER_API
+public:
+#endif
+    SkLayerRasterizer();
+
 private:
+#ifdef SK_SUPPORT_LEGACY_LAYERRASTERIZER_API
+    SkDeque* fLayers;
+#else
     const SkDeque* const fLayers;
-
-    SkLayerRasterizer();
-    SkLayerRasterizer(SkDeque* layers);
-    SkLayerRasterizer(SkReadBuffer&);
+#endif
 
     static SkDeque* ReadLayers(SkReadBuffer& buffer);