hide SkBitmap::Config entirely (behind a flag)

include/core/SkBitmap.h

Index: include/core/SkBitmap.h
diff --git a/include/core/SkBitmap.h b/include/core/SkBitmap.h
index ddeac2573b8a4e9e5de56850f4a6c86ec5c53009..d3c33a8e034d23e9c7ee00f0bf571e2e0b43ece3 100644
--- a/include/core/SkBitmap.h
+++ b/include/core/SkBitmap.h
@@ -38,6 +38,7 @@ class SK_API SkBitmap {
 public:
     class SK_API Allocator;
 
+#ifdef SK_SUPPORT_LEGACY_BITMAP_CONFIG
     enum Config {
         kNo_Config,         //!< bitmap has not been configured
         kA8_Config,         //!< 8-bits per pixel, with only alpha specified (0 is transparent, 0xFF is opaque)
@@ -58,6 +59,7 @@ public:
     
     SK_ATTR_DEPRECATED("use config()")
     Config  getConfig() const { return this->config(); }
+#endif
 
     /**
      *  Default construct creates a bitmap with zero width and height, and no pixels.
@@ -895,11 +897,13 @@ inline SkPMColor SkBitmap::getIndex8Color(int x, int y) const {
     return (*fColorTable)[*((const uint8_t*)fPixels + y * fRowBytes + x)];
 }
 
+#ifdef SK_SUPPORT_LEGACY_BITMAP_CONFIG
 ///////////////////////////////////////////////////////////////////////////////
 //
 // Helpers until we can fully deprecate SkBitmap::Config
 //
 extern SkBitmap::Config SkColorTypeToBitmapConfig(SkColorType);
 extern SkColorType SkBitmapConfigToColorType(SkBitmap::Config);
+#endif
 
 #endif