initialize font metrics for pdf (found by valgrind)

src/fonts/SkTestScalerContext.cpp

Index: src/fonts/SkTestScalerContext.cpp
diff --git a/src/fonts/SkTestScalerContext.cpp b/src/fonts/SkTestScalerContext.cpp
index ed98dba19e757b626d9f25c0c989128c0d0ef716..194cd0907c21aeb48b157bd00e5bc7a665bad66b 100644
--- a/src/fonts/SkTestScalerContext.cpp
+++ b/src/fonts/SkTestScalerContext.cpp
@@ -145,11 +145,13 @@ SkAdvancedTypefaceMetrics* SkTestTypeface::onGetAdvancedTypefaceMetrics(
                                 uint32_t glyphIDsCount) const {
 // pdf only
     SkAdvancedTypefaceMetrics* info = new SkAdvancedTypefaceMetrics;
+    info->fFontName.set(fTestFont->fName);
+    info->fType = SkAdvancedTypefaceMetrics::kOther_Font;
+    info->fFlags = SkAdvancedTypefaceMetrics::kEmpty_FontFlag;
+    info->fLastGlyphID = static_cast<uint16_t>(fTestFont->fCharCodesCount - 1);
     info->fEmSize = 0;
     info->fLastGlyphID = SkToU16(onCountGlyphs() - 1);

[hal.canary, 2015/06/11 15:55:44]

info->fLastGlyphID gets set twice.

     info->fStyle = 0;
-    info->fFontName.set(fTestFont->fName);
-    info->fType = SkAdvancedTypefaceMetrics::kOther_Font;
     info->fItalicAngle = 0;
     info->fAscent = 0;
     info->fDescent = 0;