Only generate suggested filenames when actually dragging an image.

third_party/WebKit/Source/core/clipboard/DataObjectItem.cpp

 /*
  * Copyright (C) 2011 Google 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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 15 matching lines @@
  * THEORY 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/clipboard/DataObjectItem.h"
 
 #include "core/clipboard/Pasteboard.h"
 #include "core/fileapi/Blob.h"
 #include "platform/clipboard/ClipboardMimeTypes.h"
+#include "platform/network/mime/MIMETypeRegistry.h"
 #include "public/platform/Platform.h"
 #include "public/platform/WebClipboard.h"
 
 namespace blink {
 
 DataObjectItem* DataObjectItem::createFromString(const String& type,
                                                  const String& data) {
   DataObjectItem* item = new DataObjectItem(StringKind, type);
   item->m_data = data;
   return item;
@@ skipping 24 matching lines @@
 
 DataObjectItem* DataObjectItem::createFromHTML(const String& html,
                                                const KURL& baseURL) {
   DataObjectItem* item = new DataObjectItem(StringKind, mimeTypeTextHTML);
   item->m_data = html;
   item->m_baseURL = baseURL;
   return item;
 }
 
 DataObjectItem* DataObjectItem::createFromSharedBuffer(
-    const String& name,
-    PassRefPtr<SharedBuffer> buffer) {
-  DataObjectItem* item = new DataObjectItem(FileKind, String());
+    PassRefPtr<SharedBuffer> buffer,
+    const KURL& sourceURL,
+    const String& filenameExtension,
+    const AtomicString& contentDisposition) {
+  DataObjectItem* item = new DataObjectItem(
+      FileKind,
+      MIMETypeRegistry::getWellKnownMIMETypeForExtension(filenameExtension));
   item->m_sharedBuffer = buffer;
-  item->m_title = name;
+  item->m_filenameExtension = filenameExtension;
+  // TODO(dcheng): Rename these fields to be more generically named.
+  item->m_title = contentDisposition;
+  item->m_baseURL = sourceURL;
   return item;
 }
 
 DataObjectItem* DataObjectItem::createFromPasteboard(const String& type,
                                                      uint64_t sequenceNumber) {
   if (type == mimeTypeImagePng)
     return new DataObjectItem(FileKind, type, sequenceNumber);
   return new DataObjectItem(StringKind, type, sequenceNumber);
 }
 
@@ skipping 82 matching lines @@
 
 String DataObjectItem::fileSystemId() const {
   return m_fileSystemId;
 }
 
 DEFINE_TRACE(DataObjectItem) {
   visitor->trace(m_file);
 }
 
 }  // namespace blink