More web contents dragging.

TEST=drag an image (such as the google logo from google.com) into gimp or onto the desktop.
BUG=http://crbug.com/15429
Review URL: http://codereview.chromium.org/151033

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@19553 0039d316-1c4b-4281-b951-d872f2087c98

2 files changed, 7 insertions, 0 deletions

diff --git a/base/mime_util.h b/base/mime_util.h
index 47c5975..4b67e46 100644
--- a/base/mime_util.h
+++ b/base/mime_util.h
@@ -17,6 +17,9 @@ namespace mime_util {
 // If the mime type is unknown, this will return application/octet-stream.
 std::string GetFileMimeType(const FilePath& filepath);
 
+// Get the mime type for a byte vector.
+std::string GetDataMimeType(const std::string& data);
+
 // Gets the file name for an icon given the mime type and icon pixel size.
 // Where an icon is a square image of |size| x |size|.
 // This will try to find the closest matching icon. If that's not available,
diff --git a/base/mime_util_linux.cc b/base/mime_util_linux.cc
index 39eab03..12dff7a 100644
--- a/base/mime_util_linux.cc
+++ b/base/mime_util_linux.cc
@@ -561,6 +561,10 @@ std::string GetFileMimeType(const FilePath& filepath) {
   return xdg_mime_get_mime_type_from_file_name(filepath.value().c_str());
 }
 
+std::string GetDataMimeType(const std::string& data) {
+  return xdg_mime_get_mime_type_for_data(data.data(), data.length(), NULL);
+}
+
 FilePath GetMimeIcon(const std::string& mime_type, size_t size) {
   std::vector<std::string> icon_names;
   std::string icon_name;