Move file_handlers API from //chrome to //extensions

extensions/browser/api/file_handlers/mime_util.h

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 //
 // This file provides MIME related utilities.
 
-#ifndef CHROME_BROWSER_EXTENSIONS_API_FILE_HANDLERS_MIME_UTIL_H_
-#define CHROME_BROWSER_EXTENSIONS_API_FILE_HANDLERS_MIME_UTIL_H_
+#ifndef EXTENSIONS_BROWSER_API_FILE_HANDLERS_MIME_UTIL_H_
+#define EXTENSIONS_BROWSER_API_FILE_HANDLERS_MIME_UTIL_H_
 
 #include <stddef.h>
 
 #include <memory>
 #include <string>
 #include <vector>
 
 #include "base/callback.h"
 #include "base/macros.h"
 #include "base/memory/weak_ptr.h"
 
-class Profile;
+namespace content {
+class BrowserContext;
+}
 
 namespace base {
 class FilePath;
 }  // namespace base
 
 namespace storage {
 class FileSystemURL;
 }  // namespace storage
 
 namespace extensions {
 namespace app_file_handler_util {
 
 // Gets a MIME type for a local path and returns it with |callback|. If not
 // found, then the MIME type is an empty string.
 void GetMimeTypeForLocalPath(
-    Profile* profile,
+    content::BrowserContext* context,
     const base::FilePath& local_path,
     const base::Callback<void(const std::string&)>& callback);
 
 // Collects MIME types for files passed in the input vector. For non-native
 // file systems tries to fetch the MIME type from metadata. For native ones,
 // tries to sniff or guess by looking at the extension. If MIME type is not
 // available, then an empty string is returned in the result vector.
 class MimeTypeCollector {
  public:
   typedef base::Callback<void(std::unique_ptr<std::vector<std::string>>)>
       CompletionCallback;
 
-  explicit MimeTypeCollector(Profile* profile);
+  explicit MimeTypeCollector(content::BrowserContext* context);
   virtual ~MimeTypeCollector();
 
   // Collects all mime types asynchronously for a vector of URLs and upon
   // completion, calls the |callback|. It can be called only once.
   void CollectForURLs(const std::vector<storage::FileSystemURL>& urls,
                       const CompletionCallback& callback);
 
   // Collects all mime types asynchronously for a vector of local file paths and
   // upon completion, calls the |callback|. It can be called only once.
   void CollectForLocalPaths(const std::vector<base::FilePath>& local_paths,
                             const CompletionCallback& callback);
 
  private:
   // Called, when the |index|-th input file (or URL) got processed.
   void OnMimeTypeCollected(size_t index, const std::string& mime_type);
 
-  Profile* profile_;
+  content::BrowserContext* context_;
   std::unique_ptr<std::vector<std::string>> result_;
   size_t left_;
   CompletionCallback callback_;
   base::WeakPtrFactory<MimeTypeCollector> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(MimeTypeCollector);
 };
 
 }  // namespace app_file_handler_util
 }  // namespace extensions
 
-#endif  // CHROME_BROWSER_EXTENSIONS_API_FILE_HANDLERS_MIME_UTIL_H_
+#endif  // EXTENSIONS_BROWSER_API_FILE_HANDLERS_MIME_UTIL_H_