File API: Add a use counter for nonstandard 'endings' option

third_party/WebKit/Source/core/fileapi/File.cpp

 /*
  * Copyright (C) 2008 Apple Inc. All Rights Reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 10 matching lines @@
  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #include "core/fileapi/File.h"
 
 #include "bindings/core/v8/ExceptionState.h"
 #include "core/dom/ExceptionCode.h"
 #include "core/fileapi/FilePropertyBag.h"
+#include "core/frame/UseCounter.h"
 #include "platform/FileMetadata.h"
 #include "platform/MIMETypeRegistry.h"
 #include "platform/blob/BlobData.h"
 #include "public/platform/Platform.h"
 #include "public/platform/WebFileUtilities.h"
 #include "wtf/CurrentTime.h"
 #include "wtf/DateMath.h"
 
 namespace blink {
 
@@ skipping 40 matching lines @@
 
 static PassOwnPtr<BlobData> createBlobDataForFileSystemURL(const KURL& fileSystemURL, const FileMetadata& metadata)
 {
     OwnPtr<BlobData> blobData = BlobData::create();
     blobData->setContentType(getContentTypeFromFileName(fileSystemURL.path(), File::WellKnownContentTypes));
     blobData->appendFileSystemURL(fileSystemURL, 0, metadata.length, metadata.modificationTime / msPerSecond);
     return blobData.release();
 }
 
 // static
-File* File::create(const HeapVector<BlobOrStringOrArrayBufferViewOrArrayBuffer>& fileBits, const String& fileName, const FilePropertyBag& options, ExceptionState& exceptionState)
+File* File::create(ExecutionContext* context, const HeapVector<BlobOrStringOrArrayBufferViewOrArrayBuffer>& fileBits, const String& fileName, const FilePropertyBag& options, ExceptionState& exceptionState)
 {
     ASSERT(options.hasType());
     if (!options.type().containsOnlyASCII()) {
         exceptionState.throwDOMException(SyntaxError, "The 'type' property must consist of ASCII characters.");
         return nullptr;
     }
 
     double lastModified;
     if (options.hasLastModified())
         lastModified = static_cast<double>(options.lastModified());
     else
         lastModified = currentTimeMS();
     ASSERT(options.hasEndings());
     bool normalizeLineEndingsToNative = options.endings() == "native";
+    if (normalizeLineEndingsToNative)
+        UseCounter::count(context, UseCounter::FileAPINativeLineEndings);
 
     OwnPtr<BlobData> blobData = BlobData::create();
     blobData->setContentType(options.type().lower());
     populateBlobData(blobData.get(), fileBits, normalizeLineEndingsToNative);
 
     long long fileSize = blobData->length();
     return File::create(fileName, lastModified, BlobDataHandle::create(blobData.release(), fileSize));
 }
 
 File* File::createWithRelativePath(const String& path, const String& relativePath)
@@ skipping 238 matching lines @@
     if (m_fileSystemURL.isEmpty() != other.m_fileSystemURL.isEmpty())
         return false;
 
     if (!m_fileSystemURL.isEmpty())
         return m_fileSystemURL == other.m_fileSystemURL;
 
     return uuid() == other.uuid();
 }
 
 } // namespace blink