diff --git a/src/ports/SkFontHost_android.cpp b/src/ports/SkFontHost_android.cpp
index d1bd9929f9..37495e7a10 100644
--- a/src/ports/SkFontHost_android.cpp
+++ b/src/ports/SkFontHost_android.cpp
@@ -1064,3 +1064,12 @@ void SkUseTestFontConfigFile(const char* mainconf, const char* fallbackconf,
     SkDEBUGF(("Use Test Config File Main %s, Fallback %s, Font Dir %s",
               gTestMainConfigFile, gTestFallbackConfigFile, gTestFontFilePrefix));
 }
+
+///////////////////////////////////////////////////////////////////////////////
+
+#include "SkFontMgr.h"
+
+SkFontMgr* SkFontMgr::Factory() {
+    // todo
+    return NULL;
+}
diff --git a/src/ports/SkFontHost_fontconfig.cpp b/src/ports/SkFontHost_fontconfig.cpp
index f66be28fdb..2f2b31429b 100644
--- a/src/ports/SkFontHost_fontconfig.cpp
+++ b/src/ports/SkFontHost_fontconfig.cpp
@@ -222,3 +222,12 @@ void FontConfigTypeface::onGetFontDescriptor(SkFontDescriptor* desc,
     desc->setFamilyName(this->getFamilyName());
     *isLocalStream = SkToBool(this->getLocalStream());
 }
+
+///////////////////////////////////////////////////////////////////////////////
+
+#include "SkFontMgr.h"
+
+SkFontMgr* SkFontMgr::Factory() {
+    // todo
+    return NULL;
+}
diff --git a/src/ports/SkFontHost_linux.cpp b/src/ports/SkFontHost_linux.cpp
index 0ddcdb767a..8825919a98 100644
--- a/src/ports/SkFontHost_linux.cpp
+++ b/src/ports/SkFontHost_linux.cpp
@@ -517,3 +517,12 @@ SkTypeface* SkFontHost::CreateTypefaceFromFile(const char path[]) {
     SkAutoTUnref<SkStream> stream(SkStream::NewFromFile(path));
     return stream.get() ? CreateTypefaceFromStream(stream) : NULL;
 }
+
+///////////////////////////////////////////////////////////////////////////////
+
+#include "SkFontMgr.h"
+
+SkFontMgr* SkFontMgr::Factory() {
+    // todo
+    return NULL;
+}
diff --git a/src/ports/SkFontHost_none.cpp b/src/ports/SkFontHost_none.cpp
index 5e3eb085ca..c5267096b4 100644
--- a/src/ports/SkFontHost_none.cpp
+++ b/src/ports/SkFontHost_none.cpp
@@ -26,3 +26,12 @@ SkTypeface* SkFontHost::CreateTypefaceFromFile(char const*) {
     SkDEBUGFAIL("SkFontHost::CreateTypefaceFromFile unimplemented");
     return NULL;
 }
+
+///////////////////////////////////////////////////////////////////////////////
+
+#include "SkFontMgr.h"
+
+SkFontMgr* SkFontMgr::Factory() {
+    // todo
+    return NULL;
+}
diff --git a/src/ports/SkFontHost_win.cpp b/src/ports/SkFontHost_win.cpp
index 0261b2b849..1253f84ebb 100755
--- a/src/ports/SkFontHost_win.cpp
+++ b/src/ports/SkFontHost_win.cpp
@@ -1674,3 +1674,12 @@ void LogFontTypeface::onFilterRec(SkScalerContextRec* rec) const {
         rec->fFlags &= ~SkScalerContext::kGenA8FromLCD_Flag;
     }
 }
+
+///////////////////////////////////////////////////////////////////////////////
+
+#include "SkFontMgr.h"
+
+SkFontMgr* SkFontMgr::Factory() {
+    // todo
+    return NULL;
+}
diff --git a/src/ports/SkFontHost_win_dw.cpp b/src/ports/SkFontHost_win_dw.cpp
index 8debc31f87..489bad727a 100644
--- a/src/ports/SkFontHost_win_dw.cpp
+++ b/src/ports/SkFontHost_win_dw.cpp
@@ -1518,3 +1518,12 @@ SkAdvancedTypefaceMetrics* DWriteFontTypeface::onGetAdvancedTypefaceMetrics(
 
     return info;
 }
+
+///////////////////////////////////////////////////////////////////////////////
+
+#include "SkFontMgr.h"
+
+SkFontMgr* SkFontMgr::Factory() {
+    // todo
+    return NULL;
+}