Update the SkDocument interface to allow for 1) abort won't emit pdf, 2) close can report success/f…

src/pdf/SkPDFDevice.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 "SkPDFDevice.h"
 
 #include "SkAnnotation.h"
@@ skipping 2016 matching lines @@
     }
     return resourceIndex;
 }
 
 void SkPDFDevice::internalDrawBitmap(const SkMatrix& matrix,
                                      const SkClipStack* clipStack,
                                      const SkRegion& clipRegion,
                                      const SkBitmap& bitmap,
                                      const SkIRect* srcRect,
                                      const SkPaint& paint) {
+    // TODO(edisonn): Perspective matrix support implemented here
     SkMatrix scaled;
     // Adjust for origin flip.
     scaled.setScale(SK_Scalar1, -SK_Scalar1);
     scaled.postTranslate(0, SK_Scalar1);
     // Scale the image up from 1x1 to WxH.
     SkIRect subset = SkIRect::MakeWH(bitmap.width(), bitmap.height());
     scaled.postScale(SkIntToScalar(subset.width()),
                      SkIntToScalar(subset.height()));
     scaled.postConcat(matrix);
     ScopedContentEntry content(this, clipStack, clipRegion, scaled, paint);
@@ skipping 16 matching lines @@
 }
 
 bool SkPDFDevice::onReadPixels(const SkBitmap& bitmap, int x, int y,
                                SkCanvas::Config8888) {
     return false;
 }
 
 bool SkPDFDevice::allowImageFilter(SkImageFilter*) {
     return false;
 }