Revert of Revive experiment to isolate shell operations.

chrome/common/shell_handler_win.mojom

Index: chrome/common/shell_handler_win.mojom
diff --git a/chrome/common/shell_handler_win.mojom b/chrome/common/shell_handler_win.mojom
index 525316746d8ce1a13bf0b543774ee4e6244a889e..b16648d6064b4353ccc4c2c4bc34cc42f0268c46 100644
--- a/chrome/common/shell_handler_win.mojom
+++ b/chrome/common/shell_handler_win.mojom
@@ -4,52 +4,7 @@
 
 module mojom;
 
-import "mojo/common/common_custom_types.mojom";
-
-[Native]
-struct FileExtensionFilters;
-
 interface ShellHandler {
   // Returns the pinned state of the current executable.
   IsPinnedToTaskbar() => (bool succeeded, bool is_pinned_to_taskbar);
-
-  // Invokes GetOpenFileName.
-  // |owner| is the HWND to use as the parent of the modal dialog.
-  // |flags| is the OFN_* flags of OPENFILENAME.
-  // |filters| constrains the user's file choices.
-  // |initial_directory| is the directory to be displayed.
-  // |filename| is the file initially selected.
-  //
-  // Returns the list of selected |files|, which are all childs of |directory|.
-  // On cancelation or failure, |files| will be empty.
-  DoGetOpenFileName(uint32 owner,
-                    uint32 flags,
-                    FileExtensionFilters filters,
-                    mojo.common.mojom.FilePath initial_directory,
-                    mojo.common.mojom.FilePath filename) =>
-      (mojo.common.mojom.FilePath directory,
-       array<mojo.common.mojom.FilePath> files);
-
-  // Invokes GetSaveFileName.
-  // |owner| is the HWND to use as the parent of the modal dialog.
-  // |flags| is the OFN_* flags of OPENFILENAME.
-  // |filters| constrains the user's file choices.
-  // |one_based_filter_index| is The index of the currently selected filter in
-  //   |filters|.
-  // |initial_directory| is the directory to be displayed.
-  // |filename| is the file initially selected.
-  // |default_extension| is the extension to add to the file if the user doesn't
-  //   type one.
-  //
-  // Returns the selected |path| and the |one_based_filter_index| of the filter
-  // passed to the initial call to DoGetSaveFileName. On cancelation or failure,
-  // |path| will be empty.
-  DoGetSaveFileName(uint32 owner,
-                    uint32 flags,
-                    FileExtensionFilters filters,
-                    uint32 one_based_filter_index,
-                    mojo.common.mojom.FilePath initial_directory,
-                    mojo.common.mojom.FilePath suggested_filename,
-                    mojo.common.mojom.FilePath default_extension) =>
-      (mojo.common.mojom.FilePath path, uint32 one_based_filter_index);
-};
+};