Move Mime type handling to streamsPrivate API, so that it works on Desktop Chrome.

chrome/common/extensions/mime_types_handler.h

Index: chrome/common/extensions/mime_types_handler.h
diff --git a/chrome/common/extensions/mime_types_handler.h b/chrome/common/extensions/mime_types_handler.h
new file mode 100644
index 0000000000000000000000000000000000000000..ed1c6308ebc7558fa49505c5f3a813bdf1369eee
--- /dev/null
+++ b/chrome/common/extensions/mime_types_handler.h
@@ -0,0 +1,74 @@
+// Copyright (c) 2012 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.
+
+#ifndef CHROME_COMMON_EXTENSIONS_MIME_TYPES_HANDLER_H_
+#define CHROME_COMMON_EXTENSIONS_MIME_TYPES_HANDLER_H_
+
+#include <set>
+#include <string>
+#include <vector>
+
+#include "base/basictypes.h"
+#include "chrome/common/extensions/extension.h"
+#include "chrome/common/extensions/manifest_handler.h"
+#include "extensions/common/url_pattern.h"
+#include "extensions/common/url_pattern_set.h"
+#include "googleurl/src/gurl.h"
+
+class URLPattern;
+
+class MimeTypesHandler {
+ public:
+  // Returns list of extensions' ids that are allowed to use MIME type filters.
+  static std::vector<std::string> GetMIMETypeWhitelist();
+
+  static MimeTypesHandler* GetHandler(const extensions::Extension* extension);
+
+  // Whitelists the extension to use MIME type filters for a test.
+  // |extension_id| should be owned by the test code.
+  static void set_extension_whitelisted_for_test(std::string* extension_id) {
+    g_test_extension_id_ = extension_id;
+  }
+
+  MimeTypesHandler();
+  ~MimeTypesHandler();
+
+  // extension id
+  std::string extension_id() const { return extension_id_; }
+  void set_extension_id(const std::string& extension_id) {
+    extension_id_ = extension_id;
+  }
+
+  // Adds a MIME type filter to the handler.
+  void AddMIMEType(const std::string& mime_type);
+  // Tests if the handler has registered a filter for the MIME type.
+  bool CanHandleMIMEType(const std::string& mime_type) const;
+
+ private:
+  // The id of the extension that will be whitelisted to use MIME type filters
+  // during tests.
+  static std::string* g_test_extension_id_;
+
+  // The id for the extension this action belongs to (as defined in the
+  // extension manifest).
+  std::string extension_id_;
+
+  // A list of MIME type filters.
+  std::set<std::string> mime_type_set_;
+};
+
+class MimeTypesHandlerParser : public extensions::ManifestHandler {
+ public:
+  MimeTypesHandlerParser();
+  virtual ~MimeTypesHandlerParser();
+
+  virtual bool Parse(extensions::Extension* extension,
+                     string16* error) OVERRIDE;
+
+ private:
+  virtual const std::vector<std::string> Keys() const OVERRIDE;
+};
+
+#endif  // CHROME_COMMON_EXTENSIONS_MIME_TYPES_HANDLER_H_
+