Remove unnecessary includes in src/pdf/

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 "SkAnnotationKeys.h"
+#include "SkBitmapKey.h"
 #include "SkColor.h"
 #include "SkColorFilter.h"
-#include "SkClipStack.h"
 #include "SkDraw.h"
 #include "SkGlyphCache.h"
-#include "SkPaint.h"
 #include "SkPath.h"
 #include "SkPathEffect.h"
 #include "SkPathOps.h"
 #include "SkPDFBitmap.h"
 #include "SkPDFCanon.h"
 #include "SkPDFDocument.h"
 #include "SkPDFFont.h"
 #include "SkPDFFormXObject.h"
 #include "SkPDFGraphicState.h"
 #include "SkPDFResourceDict.h"
 #include "SkPDFShader.h"
 #include "SkPDFStream.h"
 #include "SkPDFTypes.h"
 #include "SkPDFUtils.h"
 #include "SkRasterClip.h"
-#include "SkRect.h"
 #include "SkRRect.h"
 #include "SkString.h"
 #include "SkSurface.h"
 #include "SkTextFormatParams.h"
 #include "SkTemplates.h"
 #include "SkTypefacePriv.h"
 #include "SkXfermodeInterpretation.h"
 
 #define DPI_FOR_RASTER_SCALE_ONE 72
 
@@ skipping 2095 matching lines @@
         if (!pdfimage) {
             return;
         }
         fDocument->serialize(pdfimage);  // serialize images early.
         fDocument->canon()->addPDFBitmap(key, pdfimage);
     }
     // TODO(halcanary): addXObjectResource() should take a sk_sp<SkPDFObject>
     SkPDFUtils::DrawFormXObject(this->addXObjectResource(pdfimage.get()),
                                 &content.entry()->fContent);
 }