In SkPDFDocument::emitPDF(), stop pre-calculating file offsets.

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 "SkBitmap.h"
 #include "SkCanvas.h"
 #include "SkData.h"
@@ skipping 210 matching lines @@
     stub->insert("Value", int33.get());
     stubResource->insert("InnerValue", int44.get());
     stub->addResource(stubResource.get());
 
     SkPDFCatalog catalog((SkPDFDocument::Flags)0);
     catalog.addObject(proxy.get(), false);
     catalog.setSubstitute(proxy.get(), stub.get());
 
     SkDynamicMemoryWStream buffer;
     proxy->emit(&buffer, &catalog, false);
-    catalog.emitSubstituteResources(&buffer, false);
+    SkTSet<SkPDFObject*>* substituteResources =
+            catalog.getSubstituteList(false);
+    for (int i = 0; i < substituteResources->count(); ++i) {
+        (*substituteResources)[i]->emit(&buffer, &catalog, true);
+    }
 
     char objectResult[] = "2 0 obj\n<</Value 33\n>>\nendobj\n";
-    REPORTER_ASSERT(
-        reporter,
-        catalog.setFileOffset(proxy.get(), 0) == strlen(objectResult));
+    catalog.setFileOffset(proxy.get(), 0);
+
+    size_t outputSize = catalog.getSubstituteObject(proxy.get())
+                                ->getOutputSize(&catalog, true);
+    REPORTER_ASSERT(reporter, outputSize == strlen(objectResult));
 
     char expectedResult[] =
         "<</Value 33\n>>1 0 obj\n<</InnerValue 44\n>>\nendobj\n";
     REPORTER_ASSERT(reporter, buffer.getOffset() == strlen(expectedResult));
     REPORTER_ASSERT(reporter, stream_equals(buffer, 0, expectedResult,
                                             buffer.getOffset()));
 }
 
 // Create a bitmap that would be very eficiently compressed in a ZIP.
 static void setup_bitmap(SkBitmap* bitmap, int width, int height) {
@@ skipping 229 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);
 
     // Filter was used in rendering; should be visited.
     REPORTER_ASSERT(reporter, filter->visited());
 }