Add SkData::NewFromFD.

src/utils/win/SkDWriteFontFileStream.cpp

 /*
  * Copyright 2012 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkTypes.h"
 #include "SkDWriteFontFileStream.h"
 #include "SkHRESULT.h"
+#include "SkTemplates.h"
 #include "SkTScopedComPtr.h"
 
 #include <dwrite.h>
 #include <limits>
 
 ///////////////////////////////////////////////////////////////////////////////
 //  SkIDWriteFontFileStream
 
 SkDWriteFontFileStream::SkDWriteFontFileStream(IDWriteFontFileStream* fontFileStream)
     : fFontFileStream(SkRefComPtr(fontFileStream))
@@ skipping 83 matching lines @@
 SkDWriteFontFileStream* SkDWriteFontFileStream::fork() const {
     SkAutoTUnref<SkDWriteFontFileStream> that(this->duplicate());
     that->seek(fPos);
     return that.detach();
 }
 
 size_t SkDWriteFontFileStream::getLength() const {
     HRESULT hr = S_OK;
     UINT64 realFileSize = 0;
     hr = fFontFileStream->GetFileSize(&realFileSize);
-    if (realFileSize > (std::numeric_limits<size_t>::max)()) {
+    if (!SkTFitsIn<size_t>(realFileSize)) {
         return 0;
     }
     return static_cast<size_t>(realFileSize);
 }
 
 const void* SkDWriteFontFileStream::getMemoryBase() {
     if (fLockedMemory) {
         return fLockedMemory;
     }
 
@@ skipping 97 matching lines @@
 HRESULT STDMETHODCALLTYPE SkDWriteFontFileStreamWrapper::GetFileSize(UINT64* fileSize) {
     *fileSize = fStream->getLength();
     return S_OK;
 }
 
 HRESULT STDMETHODCALLTYPE SkDWriteFontFileStreamWrapper::GetLastWriteTime(UINT64* lastWriteTime) {
     // The concept of last write time does not apply to this loader.
     *lastWriteTime = 0;
     return E_NOTIMPL;
 }