Fix uninitialized face in fx_ge_font.cpp

MSAN reported this issue when I tried to reproduce 460936 in the last version of freetype on Linux.

BUG=N/A
R=thestig@chromium.org

Review URL: https://codereview.chromium.org/1050333002

(cherry picked from commit 672bd1706a990069dce401afead6c2ecfcdb3357)

Review URL: https://codereview.chromium.org/1136943003
diff --git a/core/src/fxge/ge/fx_ge_font.cpp b/core/src/fxge/ge/fx_ge_font.cpp
index f9e1fe6..ea59a48 100644
--- a/core/src/fxge/ge/fx_ge_font.cpp
+++ b/core/src/fxge/ge/fx_ge_font.cpp
@@ -166,7 +166,7 @@
         FXFT_Init_FreeType(&CFX_GEModule::Get()->GetFontMgr()->m_FTLibrary);
     }
     library = CFX_GEModule::Get()->GetFontMgr()->m_FTLibrary;
-    FXFT_Face face;
+    FXFT_Face face = NULL;
     int error = FXFT_New_Memory_Face(library, pData, size, 0, &face);
     if (error) {
         return NULL;