Fix print preview clipping issues due to scaling.

skia/ext/vector_platform_device_skia.cc

 // Copyright (c) 2009 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "skia/ext/vector_platform_device_skia.h"
 
 #include "skia/ext/bitmap_platform_device.h"
 #include "third_party/skia/include/core/SkClipStack.h"
 #include "third_party/skia/include/core/SkDraw.h"
 #include "third_party/skia/include/core/SkRect.h"
 #include "third_party/skia/include/core/SkRegion.h"
 #include "third_party/skia/include/core/SkScalar.h"
 
 namespace skia {
 
 SkDevice* VectorPlatformDeviceSkiaFactory::newDevice(SkCanvas* noUsed,
                                                      SkBitmap::Config config,
                                                      int width, int height,
                                                      bool isOpaque,
                                                      bool isForLayer) {
   SkASSERT(config == SkBitmap::kARGB_8888_Config);
   SkMatrix initialTransform;
   initialTransform.reset();
   if (isForLayer) {
     initialTransform.setTranslate(0, height);
     initialTransform.preScale(1, -1);
   }
-  return new VectorPlatformDeviceSkia(width, height, initialTransform);
+  SkSize device_size = SkSize::Make(width, height);
+  SkRefPtr<SkPDFDevice> pdf_device =
+      new SkPDFDevice(device_size, device_size, initialTransform);
+  pdf_device->unref();  // SkRefPtr and new both took a reference.
+  return new VectorPlatformDeviceSkia(pdf_device.get(), initialTransform);
 }
 
 static inline SkBitmap makeABitmap(int width, int height) {
   SkBitmap bitmap;
   bitmap.setConfig(SkBitmap::kNo_Config, width, height);
   return bitmap;
 }
 
 VectorPlatformDeviceSkia::VectorPlatformDeviceSkia(
-    int width, int height, const SkMatrix& initialTransform)
-    : PlatformDevice(makeABitmap(width, height)),
-      pdf_device_(new SkPDFDevice(width, height, initialTransform)) {
-  pdf_device_->unref();  // SkRefPtr and new both took a reference.
+    SkPDFDevice* pdf_device, const SkMatrix& initialTransform)
+    : PlatformDevice(makeABitmap(pdf_device->width(), pdf_device->height())),
+      pdf_device_(pdf_device) {
 }
 
 VectorPlatformDeviceSkia::~VectorPlatformDeviceSkia() {
 }
 
 bool VectorPlatformDeviceSkia::IsVectorial() {
   return true;
 }
 
 bool VectorPlatformDeviceSkia::IsNativeFontRenderingAllowed() {
@@ skipping 168 matching lines @@
 #if defined(OS_WIN)
 void VectorPlatformDeviceSkia::drawToHDC(HDC dc,
                                          int x,
                                          int y,
                                          const RECT* src_rect) {
   SkASSERT(false);
 }
 #endif
 
 }  // namespace skia