HTML Media Capture: update capture attribute to use string.

content/public/common/file_chooser_params.h

 // 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 CONTENT_PUBLIC_COMMON_FILE_CHOOSER_PARAMS_H_
 #define CONTENT_PUBLIC_COMMON_FILE_CHOOSER_PARAMS_H_
 
 #include <vector>
 
 #include "base/files/file_path.h"
@@ skipping 35 matching lines @@
   base::FilePath default_file_name;
 
   // A list of valid lower-cased MIME types or file extensions specified in an
   // input element. It is used to restrict selectable files to such types.
   std::vector<base::string16> accept_types;
 
   // Whether the caller needs native file path or not.
   bool need_local_path;
 
 #if defined(OS_ANDROID)
-  // See http://www.w3.org/TR/html-media-capture for more information.
-  // If true, the data should be obtained using the device's camera/mic/etc.
-  bool capture;
+  // See https://w3c.github.io/html-media-capture/#dom-htmlinputelement-capture
+  // for more information.
+  base::string16 capture;
 #endif
 
   // If non-empty, represents the URL of the requestor if the request was
   // initiated by a document. Note that this value should be considered
   // untrustworthy since it is specified by the sandbox and not validated.
   GURL requestor;
 };
 
 }  // namespace content
 
 #endif  // CONTENT_PUBLIC_COMMON_FILE_CHOOSER_PARAMS_H_