Addressing C4267 warnings for printing.

printing/pdf_metafile_skia.cc

 // Copyright (c) 2012 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 "printing/pdf_metafile_skia.h"
 
+#include <algorithm>
+#include <string>
+#include <utility>
+#include <vector>
+
 #include "base/files/file.h"
+#include "base/memory/ptr_util.h"
 #include "base/time/time.h"
 #include "printing/print_settings.h"
 #include "third_party/skia/include/core/SkDocument.h"
 #include "third_party/skia/include/core/SkPictureRecorder.h"
 #include "third_party/skia/include/core/SkStream.h"
 // Note that headers in third_party/skia/src are fragile.  This is
 // an experimental, fragile, and diagnostic-only document type.
 #include "third_party/skia/src/utils/SkMultiPictureDocument.h"
 #include "ui/gfx/geometry/safe_integer_conversions.h"
 #include "ui/gfx/skia_util.h"
@@ skipping 87 matching lines @@
 PdfMetafileSkia::~PdfMetafileSkia() {}
 
 bool PdfMetafileSkia::Init() {
   return true;
 }
 
 // TODO(halcanary): Create a Metafile class that only stores data.
 // Metafile::InitFromData is orthogonal to what the rest of
 // PdfMetafileSkia does.
 bool PdfMetafileSkia::InitFromData(const void* src_buffer,
-                                   uint32_t src_buffer_size) {
-  data_->pdf_data_.reset(new SkMemoryStream(src_buffer, src_buffer_size, true));
+                                   size_t src_buffer_size) {
+  data_->pdf_data_ = base::MakeUnique<SkMemoryStream>(
+      src_buffer, src_buffer_size, true /* copy_data? */);
   return true;
 }
 
 void PdfMetafileSkia::StartPage(const gfx::Size& page_size,
                                 const gfx::Rect& content_area,
                                 const float& scale_factor) {
   DCHECK_GT(page_size.width(), 0);
   DCHECK_GT(page_size.height(), 0);
   DCHECK_GT(scale_factor, 0.0f);
   if (data_->recorder_.getRecordingCanvas())
@@ skipping 131 matching lines @@
                                  CGContextRef context,
                                  const CGRect rect,
                                  const MacRenderPageParams& params) const {
   DCHECK_GT(GetDataSize(), 0U);
   if (data_->pdf_cg_.GetDataSize() == 0) {
     if (GetDataSize() == 0)
       return false;
     size_t length = data_->pdf_data_->getLength();
     std::vector<uint8_t> buffer(length);
     (void)WriteAssetToBuffer(data_->pdf_data_.get(), &buffer[0], length);
-    data_->pdf_cg_.InitFromData(&buffer[0],
-                                base::checked_cast<uint32_t>(length));
+    data_->pdf_cg_.InitFromData(&buffer[0], length);
   }
   return data_->pdf_cg_.RenderPage(page_number, context, rect, params);
 }
 #endif
 
 bool PdfMetafileSkia::SaveTo(base::File* file) const {
   if (GetDataSize() == 0U)
     return false;
 
   // Calling duplicate() keeps original asset state unchanged.
@@ skipping 34 matching lines @@
 
   metafile->data_->pages_.push_back(data_->pages_.back());
 
   if (!metafile->FinishDocument())  // Generate PDF.
     metafile.reset();
 
   return metafile;
 }
 
 }  // namespace printing