Reland of move remote tree host and some related input and metro_driver code

ui/shell_dialogs/select_file_dialog_win.cc

Index: ui/shell_dialogs/select_file_dialog_win.cc
diff --git a/ui/shell_dialogs/select_file_dialog_win.cc b/ui/shell_dialogs/select_file_dialog_win.cc
index 40215a344fee59fc74d0d75987bfd0e974dbb43a..4cd8896b02515ba9edc7e3cb332d9324247ffa1c 100644
--- a/ui/shell_dialogs/select_file_dialog_win.cc
+++ b/ui/shell_dialogs/select_file_dialog_win.cc
@@ -30,7 +30,6 @@
 #include "ui/shell_dialogs/base_shell_dialog_win.h"
 #include "ui/shell_dialogs/shell_dialogs_delegate.h"
 #include "ui/strings/grit/ui_strings.h"
-#include "win8/viewer/metro_viewer_process_host.h"
 
 namespace {
 
@@ -328,59 +327,6 @@
     void* params) {
   has_multiple_file_type_choices_ =
       file_types ? file_types->extensions.size() > 1 : true;
-  // If the owning_window passed in is in metro then we need to forward the
-  // file open/save operations to metro.
-  if (GetShellDialogsDelegate() &&
-      GetShellDialogsDelegate()->IsWindowInMetro(owning_window)) {
-    if (type == SELECT_SAVEAS_FILE) {
-      win8::MetroViewerProcessHost::HandleSaveFile(
-          title,
-          default_path,
-          GetFilterForFileTypes(file_types),
-          file_type_index,
-          default_extension,
-          base::Bind(&ui::SelectFileDialog::Listener::FileSelected,
-                     base::Unretained(listener_)),
-          base::Bind(&ui::SelectFileDialog::Listener::FileSelectionCanceled,
-                     base::Unretained(listener_)));
-      return;
-    } else if (type == SELECT_OPEN_FILE) {
-      win8::MetroViewerProcessHost::HandleOpenFile(
-          title,
-          default_path,
-          GetFilterForFileTypes(file_types),
-          base::Bind(&ui::SelectFileDialog::Listener::FileSelected,
-                     base::Unretained(listener_)),
-          base::Bind(&ui::SelectFileDialog::Listener::FileSelectionCanceled,
-                     base::Unretained(listener_)));
-      return;
-    } else if (type == SELECT_OPEN_MULTI_FILE) {
-      win8::MetroViewerProcessHost::HandleOpenMultipleFiles(
-          title,
-          default_path,
-          GetFilterForFileTypes(file_types),
-          base::Bind(&ui::SelectFileDialog::Listener::MultiFilesSelected,
-                     base::Unretained(listener_)),
-          base::Bind(&ui::SelectFileDialog::Listener::FileSelectionCanceled,
-                     base::Unretained(listener_)));
-      return;
-    } else if (type == SELECT_FOLDER || type == SELECT_UPLOAD_FOLDER) {
-      base::string16 title_string = title;
-      if (type == SELECT_UPLOAD_FOLDER && title_string.empty()) {
-        // If it's for uploading don't use default dialog title to
-        // make sure we clearly tell it's for uploading.
-        title_string = l10n_util::GetStringUTF16(
-            IDS_SELECT_UPLOAD_FOLDER_DIALOG_TITLE);
-      }
-      win8::MetroViewerProcessHost::HandleSelectFolder(
-          title_string,
-          base::Bind(&ui::SelectFileDialog::Listener::FileSelected,
-                     base::Unretained(listener_)),
-          base::Bind(&ui::SelectFileDialog::Listener::FileSelectionCanceled,
-                     base::Unretained(listener_)));
-      return;
-    }
-  }
   HWND owner = owning_window && owning_window->GetRootWindow()
       ? owning_window->GetHost()->GetAcceleratedWidget() : NULL;