AI 145053: add SVG to the browser [disabled by default]
  To enable SVG, edit your buildspec.mk to
  ENABLE_SVG:=true
  then
  make clean-libwebcore && make
  Some SVG functionality has been stubbed out in this checkin.
  //branches/master/android/build/buildspec.mk.default	# edit
  - add ENABLE_SVG, commented out by default
  - fix up WEBCORE_INSTRUMENTATION define while I was in there
  //branches/master/android/external/webkit/Android.mk	# edit
  - add ENABLE_SVG C define
  - add svg paths to C includes
  //branches/master/android/external/webkit/WebCore/Android.derived.mk	# edit
  - update merge tool rules
  - add svg to css property names, keywords, generated bindings
  - add svg names, element factory, wrappers
  - remove obsolete ksvgcssproperties.h
  - add XLinkNames, required by SVG
  //branches/master/android/external/webkit/WebCore/Android.mk	# edit
  - update merge tool rules
  - add svg bindings, css svg parsing, svg rendering, svg engine
  //branches/master/android/external/webkit/WebCore/config.h	# edit
  - leave ENABLE_SVG alone if it is already defined
  //branches/master/android/external/webkit/WebCore/loader/EmptyClients.h	# edit
  - add some Android extensions as empty virtuals (EmptyClients is only used by SVG)
  //branches/master/android/external/webkit/WebCore/platform/graphics/android/GraphicsContextAndroid.cpp	# edit
  //branches/master/android/external/webkit/WebCore/platform/graphics/android/PathAndroid.cpp	# edit
  - add SVG graphics porting functions. Note the FIXMEs -- some are unimplemented.
  BUG=1474412

Automated import of CL 145053
diff --git a/buildspec.mk.default b/buildspec.mk.default
index 861bb0d..6fd93da 100644
--- a/buildspec.mk.default
+++ b/buildspec.mk.default
@@ -88,10 +88,16 @@
 #NO_FALLBACK_FONT:=true
 endif
 
-# To enabled instrumentation in webcore based apps like gmail and
+# To enable instrumentation in webcore based apps like gmail and
 # the browser, define WEBCORE_INSTRUMENTATION:=true
+ifndef WEBCORE_INSTRUMENTATION
 #WEBCORE_INSTRUMENTATION:=true
-#endif
+endif
+
+# To enable SVG in webcore define ENABLE_SVG:=true
+ifndef ENABLE_SVG
+#ENABLE_SVG:=true
+endif
 
 # when the build system changes such that this file must be updated, this
 # variable will be changed.  After you have modified this file with the new