[NOT FOR COMMIT] Ignore inserting characters of Keys with modifiers on CrOS

ui/views/controls/textfield/textfield.cc

 // 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.
 
 #include "ui/views/controls/textfield/textfield.h"
 
 #include <string>
 
 #include "base/trace_event/trace_event.h"
 #include "ui/accessibility/ax_view_state.h"
@@ skipping 1431 matching lines @@
   if (GetRenderText()->insert_mode())
     model_->InsertText(new_text);
   else
     model_->ReplaceText(new_text);
   skip_input_method_cancel_composition_ = false;
   UpdateAfterChange(true, true);
   OnAfterUserAction();
 }
 
 void Textfield::InsertChar(base::char16 ch, int flags) {
+#if defined(OS_CHROMEOS)
   const int kControlModifierMask = ui::EF_CONTROL_DOWN | ui::EF_ALT_DOWN |
-                                   ui::EF_COMMAND_DOWN | ui::EF_ALTGR_DOWN |
-                                   ui::EF_MOD3_DOWN;
+                                   ui::EF_COMMAND_DOWN;
+#else
+  const int kControlModifierMask = ui::EF_ALT_DOWN;
+#endif  // defined(OS_CHROMEOS)
 
   // Filter out all control characters, including tab and new line characters,
-  // and all characters with Alt modifier. But allow characters with the AltGr
-  // modifier. On Windows AltGr is represented by Alt+Ctrl, and on Linux it's a
-  // different flag that we don't care about.
-  const bool should_insert_char =
-      ((ch >= 0x20 && ch < 0x7F) || ch > 0x9F) &&
-      (flags & kControlModifierMask) != ui::EF_ALT_DOWN;
+  // and all characters with Alt (also Ctrl and Search on CrOs) modifiers. But
+  // allow characters with the AltGr modifier. On Windows AltGr is represented
+  // by Alt+Ctrl, and on Linux it's a different flag that we don't care about.
+  const bool should_insert_char = ((ch >= 0x20 && ch < 0x7F) || ch > 0x9F) &&
+                                  (flags & kControlModifierMask) == 0;
   if (GetTextInputType() == ui::TEXT_INPUT_TYPE_NONE || !should_insert_char)
     return;
 
   DoInsertChar(ch);
 
   if (text_input_type_ == ui::TEXT_INPUT_TYPE_PASSWORD &&
       password_reveal_duration_ != base::TimeDelta()) {
     const size_t change_offset = model_->GetCursorPosition();
     DCHECK_GT(change_offset, 0u);
     RevealPasswordChar(change_offset - 1);
@@ skipping 419 matching lines @@
     RequestFocus();
   model_->MoveCursorTo(mouse);
   if (!selection_clipboard_text.empty()) {
     model_->InsertText(selection_clipboard_text);
     UpdateAfterChange(true, true);
   }
   OnAfterUserAction();
 }
 
 }  // namespace views