Move SkPdfContext into its own files.

experimental/PdfViewer/SkPdfGraphicsState.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 "SkPdfGraphicsState.h"
 
 #include "SkDashPathEffect.h"
-#include "SkPdfNativeTokenizer.h"
-
-SkPdfContext::SkPdfContext(SkPdfNativeDoc* doc)
-    : fPdfDoc(doc)
-    , fTmpPageAllocator(new SkPdfAllocator()) {
-}
-
-SkPdfContext::~SkPdfContext() {
-    delete fTmpPageAllocator;
-}
 
 void SkPdfGraphicsState::applyGraphicsState(SkPaint* paint, bool stroking) {
     if (stroking) {
         fStroking.applyGraphicsState(paint);
     } else {
         fNonStroking.applyGraphicsState(paint);
     }
 
     // TODO(edisonn): Perf, we should load this option from pdfContext->options,
     // or pdfContext->addPaintOptions(&paint);
@@ skipping 11 matching lines @@
     }
 
     // TODO(edisonn): NYI multiple blend modes
     if (fBlendModesLength == 1 && fBlendModes[0] != SkXfermode::kSrc_Mode) {
         paint->setXfermodeMode(fBlendModes[0]);
     }
 
     //paint->setStrokeMiter(SkDoubleToScalar(fMiterLimit));
     // TODO(edisonn): impl cap and join
 }