[PDF] Subset font advance data (W array).

Patch by arthurhsu@chromium.org. Original CL:
http://codereview.appspot.com/4830068
http://codereview.appspot.com/4905051/

Review URL: http://codereview.appspot.com/4911042

git-svn-id: http://skia.googlecode.com/svn/trunk@2134 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/src/pdf/SkPDFFontImpl.h b/src/pdf/SkPDFFontImpl.h
index 61983a4..d298a38 100755
--- a/src/pdf/SkPDFFontImpl.h
+++ b/src/pdf/SkPDFFontImpl.h
@@ -46,7 +46,8 @@
                  const SkPDFGlyphSet* subset);
 
     bool populate(const SkPDFGlyphSet* subset);
-    bool addFontDescriptor(int16_t defaultWidth, const SkPDFGlyphSet* subset);
+    bool addFontDescriptor(int16_t defaultWidth,
+                           const SkTDArray<uint32_t>* subset);
 };
 
 class SkPDFType1Font : public SkPDFFont {