add impls for createfromstream for fontconfig fontmgr

git-svn-id: http://skia.googlecode.com/svn/trunk@10469 2bbb7eff-a529-9590-31e7-b0007b416f81

1 files changed, 9 insertions, 0 deletions

diff --git a/src/core/SkFontHost.cpp b/src/core/SkFontHost.cpp
index 11f681329a..799b95b565 100644
--- a/src/core/SkFontHost.cpp
+++ b/src/core/SkFontHost.cpp
@@ -162,14 +162,23 @@ SkTypeface* SkFontMgr::matchFaceStyle(const SkTypeface* face,
 }
 
 SkTypeface* SkFontMgr::createFromData(SkData* data, int ttcIndex) {
+    if (NULL == data) {
+        return NULL;
+    }
     return this->onCreateFromData(data, ttcIndex);
 }
 
 SkTypeface* SkFontMgr::createFromStream(SkStream* stream, int ttcIndex) {
+    if (NULL == stream) {
+        return NULL;
+    }
     return this->onCreateFromStream(stream, ttcIndex);
 }
 
 SkTypeface* SkFontMgr::createFromFile(const char path[], int ttcIndex) {
+    if (NULL == path) {
+        return NULL;
+    }
     return this->onCreateFromFile(path, ttcIndex);
 }