Fix SkFlate.cpp when SK_ZLIB_INCLUDE is not #defined.

This was failing for Windows builds since r1911.

git-svn-id: http://skia.googlecode.com/svn/trunk@1923 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/src/core/SkFlate.cpp b/src/core/SkFlate.cpp
index a5a7b22..ea5fef9 100644
--- a/src/core/SkFlate.cpp
+++ b/src/core/SkFlate.cpp
@@ -21,6 +21,8 @@
 #ifndef SK_ZLIB_INCLUDE
 bool SkFlate::HaveFlate() { return false; }
 bool SkFlate::Deflate(SkStream*, SkWStream*) { return false; }
+bool SkFlate::Deflate(const void*, size_t, SkWStream*) { return false; }
+bool SkFlate::Deflate(const SkData*, SkWStream*) { return false; }
 bool SkFlate::Inflate(SkStream*, SkWStream*) { return false; }
 #else