Add isGenericFileHandler property to FileTask.

chrome/browser/chromeos/file_manager/file_tasks.h

Index: chrome/browser/chromeos/file_manager/file_tasks.h
diff --git a/chrome/browser/chromeos/file_manager/file_tasks.h b/chrome/browser/chromeos/file_manager/file_tasks.h
index 5f88d98b00f3e70a54fab2457bdec9ff360b4dee..ac320ea37c86182441f64b34da3c7831508581e5 100644
--- a/chrome/browser/chromeos/file_manager/file_tasks.h
+++ b/chrome/browser/chromeos/file_manager/file_tasks.h
@@ -104,7 +104,7 @@
 // should be simplified: crbug.com/267313
 //
 // See also:
-// ui/file_manager/file_manager/js/file_tasks.js
+// ui/file_manager/file_manager/foreground/js/file_tasks.js
 //
 
 #ifndef CHROME_BROWSER_CHROMEOS_FILE_MANAGER_FILE_TASKS_H_
@@ -166,7 +166,8 @@ class FullTaskDescriptor {
   FullTaskDescriptor(const TaskDescriptor& task_descriptor,
                      const std::string& task_title,
                      const GURL& icon_url,
-                     bool is_default);
+                     bool is_default,
+                     bool is_generic_file_handler);
   const TaskDescriptor& task_descriptor() const { return task_descriptor_; }
 
   // The title of the task.
@@ -178,11 +179,18 @@ class FullTaskDescriptor {
   bool is_default() const { return is_default_; }
   void set_is_default(bool is_default) { is_default_ = is_default; }
 
+  // True if this task is from generic file handler.
+  bool is_generic_file_handler() const { return is_generic_file_handler_; }
+  void set_is_generic_file_handler(bool is_generic_file_handler) {
+    is_generic_file_handler_ = is_generic_file_handler;
+  }
+
  private:
   TaskDescriptor task_descriptor_;
   std::string task_title_;
   GURL icon_url_;
   bool is_default_;
+  bool is_generic_file_handler_;
 };
 
 // Update the default file handler for the given sets of suffixes and MIME