SkPDF: SkPDFDocument reorganized so that some objects can be serialized early.

tests/PDFDocumentTest.cpp

 /*
  * Copyright 2013 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 #include "Test.h"
 
 #include "Resources.h"
 #include "SkCanvas.h"
@@ skipping 15 matching lines @@
 static void test_abort(skiatest::Reporter* reporter) {
     SkDynamicMemoryWStream stream;
     SkAutoTUnref<SkDocument> doc(SkDocument::CreatePDF(&stream));
 
     SkCanvas* canvas = doc->beginPage(100, 100);
     canvas->drawColor(SK_ColorRED);
     doc->endPage();
 
     doc->abort();
 
-    REPORTER_ASSERT(reporter, stream.bytesWritten() == 0);
+    // Test that only the header is written, not the full document.
+    REPORTER_ASSERT(reporter, stream.bytesWritten() < 256);
 }
 
 static void test_abortWithFile(skiatest::Reporter* reporter) {
     SkString tmpDir = skiatest::GetTmpDir();
 
     if (tmpDir.isEmpty()) {
         return;  // TODO(edisonn): unfortunatelly this pattern is used in other
                  // tests, but if GetTmpDir() starts returning and empty dir
                  // allways, then all these tests will be disabled.
     }
@@ skipping 112 matching lines @@
     REQUIRE_PDF_DOCUMENT(document_skbug_4734, r);
     SkDynamicMemoryWStream stream;
     SkAutoTUnref<SkDocument> doc(SkDocument::CreatePDF(&stream));
     SkCanvas* canvas = doc->beginPage(64, 64);
     canvas->scale(10000.0f, 10000.0f);
     canvas->translate(20.0f, 10.0f);
     canvas->rotate(30.0f);
     const char text[] = "HELLO";
     canvas->drawText(text, strlen(text), 0, 0, SkPaint());
 }