SkPDF: fall back on paths for unembeddable fonts.

tests/PDFPrimitivesTest.cpp

 /*
  * Copyright 2010 The Android Open Source Project
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
+#include "Resources.h"
 #include "SkBitmap.h"
 #include "SkCanvas.h"
 #include "SkData.h"
 #include "SkDocument.h"
 #include "SkDeflate.h"
 #include "SkImageEncoder.h"
 #include "SkMatrix.h"
 #include "SkPDFCanon.h"
 #include "SkPDFDevice.h"
+#include "SkPDFFont.h"
 #include "SkPDFStream.h"
 #include "SkPDFTypes.h"
 #include "SkReadBuffer.h"
 #include "SkScalar.h"
 #include "SkStream.h"
 #include "SkTypes.h"
 #include "Test.h"
+#include "sk_tool_utils.h"
 
 #define DUMMY_TEXT "DCT compessed stream."
 
 namespace {
 struct Catalog {
     SkPDFSubstituteMap substitutes;
     SkPDFObjNumMap numbers;
 };
 }  // namespace
 
@@ skipping 374 matching lines @@
     // Filter just created; should be unvisited.
     REPORTER_ASSERT(reporter, !filter->visited());
     SkPaint paint;
     paint.setImageFilter(filter.get());
     canvas->drawRect(SkRect::MakeWH(100, 100), paint);
     doc->close();
 
     // Filter was used in rendering; should be visited.
     REPORTER_ASSERT(reporter, filter->visited());
 }
+
+// Check that PDF rendering of image filters successfully falls back to
+// CPU rasterization.
+DEF_TEST(PDFFontCanEmbedTypeface, reporter) {
+    SkPDFCanon canon;
+
+    const char resource[] = "fonts/Roboto2-Regular_NoEmbed.ttf";
+    SkAutoTUnref<SkTypeface> noEmbedTypeface(GetResourceAsTypeface(resource));
+    if (noEmbedTypeface) {
+        REPORTER_ASSERT(reporter,
+                        !SkPDFFont::CanEmbedTypeface(noEmbedTypeface, &canon));
+    }
+    SkAutoTUnref<SkTypeface> portableTypeface(
+            sk_tool_utils::create_portable_typeface(NULL, SkTypeface::kNormal));
+    REPORTER_ASSERT(reporter,
+                    SkPDFFont::CanEmbedTypeface(portableTypeface, &canon));
+}