Move chrome/browser/chromeos/drive/resource* (+deps) into components/drive.

chrome/browser/chromeos/drive/file_system_util.h

Index: chrome/browser/chromeos/drive/file_system_util.h
diff --git a/chrome/browser/chromeos/drive/file_system_util.h b/chrome/browser/chromeos/drive/file_system_util.h
index 5e91b3c2c618b231be37f1fbb2136e9c8eacfdd5..370c7524f087665feacc54e1fb6e81aea9528623 100644
--- a/chrome/browser/chromeos/drive/file_system_util.h
+++ b/chrome/browser/chromeos/drive/file_system_util.h
@@ -29,6 +29,18 @@ namespace util {
 // Returns the Drive mount point path, which looks like "/special/drive-<hash>".
 base::FilePath GetDriveMountPointPath(Profile* profile);
 
+// Returns the Drive mount point path, which looks like
+// "/special/drive-<username_hash>", when provided with the |user_id_hash|.
+base::FilePath GetDriveMountPointPathForUserIdHash(std::string user_id_hash);
+
+// Returns true if the given path is under the Drive mount point.
+bool IsUnderDriveMountPoint(const base::FilePath& path);
+
+// Extracts the Drive path from the given path located under the Drive mount
+// point. Returns an empty path if |path| is not under the Drive mount point.
+// Examples: ExtractDrivePath("/special/drive-xxx/foo.txt") => "drive/foo.txt"
+base::FilePath ExtractDrivePath(const base::FilePath& path);
+
 // Returns the FileSystem for the |profile|. If not available (not mounted
 // or disabled), returns NULL.
 FileSystemInterface* GetFileSystemByProfile(Profile* profile);