Add a default-default font for DirectWrite.

src/ports/SkFontHost_win_dw.cpp

 /*
  * Copyright 2011 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkTypes.h"
 #undef GetGlyphIndices
 
@@ skipping 1656 matching lines @@
 }
 
 HRESULT SkFontMgr_DirectWrite::getByFamilyName(const WCHAR wideFamilyName[],
                                                IDWriteFontFamily** fontFamily) const {
     UINT32 index;
     BOOL exists;
     HR(fFontCollection->FindFamilyName(wideFamilyName, &index, &exists));
 
     if (exists) {
         HR(fFontCollection->GetFontFamily(index, fontFamily));
-        return S_OK;
     }
-    return S_FALSE;
+    return S_OK;
 }
 
 HRESULT SkFontMgr_DirectWrite::getDefaultFontFamily(IDWriteFontFamily** fontFamily) const {
     NONCLIENTMETRICSW metrics;
     metrics.cbSize = sizeof(metrics);
     if (0 == SystemParametersInfoW(SPI_GETNONCLIENTMETRICS,
                                    sizeof(metrics),
                                    &metrics,
                                    0)) {
         return E_UNEXPECTED;
     }
     HRM(this->getByFamilyName(metrics.lfMessageFont.lfFaceName, fontFamily),
         "Could not create DWrite font family from LOGFONT.");
-
     return S_OK;
 }
 
 SkTypeface* SkFontMgr_DirectWrite::onLegacyCreateTypeface(const char familyName[],
                                                           unsigned styleBits) const {
     SkTScopedComPtr<IDWriteFontFamily> fontFamily;
     if (familyName) {
         SkSMallocWCHAR wideFamilyName;
         if (SUCCEEDED(sk_cstring_to_wchar(familyName, &wideFamilyName))) {
             this->getByFamilyName(wideFamilyName, &fontFamily);
         }
     }
 
     if (NULL == fontFamily.get()) {
         // No family with given name, try default.
         HRNM(this->getDefaultFontFamily(&fontFamily), "Could not get default font family.");
     }
 
+    if (NULL == fontFamily.get()) {
+        // Could not obtain the default font.
+        HRNM(fFontCollection->GetFontFamily(0, &fontFamily),
+             "Could not get default-default font family.");
+    }
+
     SkTScopedComPtr<IDWriteFont> font;
     DWRITE_FONT_WEIGHT weight = (styleBits & SkTypeface::kBold)
                               ? DWRITE_FONT_WEIGHT_BOLD
                               : DWRITE_FONT_WEIGHT_NORMAL;
     DWRITE_FONT_STRETCH stretch = DWRITE_FONT_STRETCH_NORMAL;
     DWRITE_FONT_STYLE italic = (styleBits & SkTypeface::kItalic)
                              ? DWRITE_FONT_STYLE_ITALIC
                              : DWRITE_FONT_STYLE_NORMAL;
     HRNM(fontFamily->GetFirstMatchingFont(weight, stretch, italic, &font),
          "Could not get matching font.");
@@ skipping 112 matching lines @@
 }
 
 #include "SkFontMgr_indirect.h"
 SkFontMgr* SkFontMgr_New_DirectWriteRenderer(SkRemotableFontMgr* proxy) {
     SkAutoTUnref<SkFontMgr> impl(SkFontMgr_New_DirectWrite());
     if (impl.get() == NULL) {
         return NULL;
     }
     return SkNEW_ARGS(SkFontMgr_Indirect, (impl.get(), proxy));
 }