mus: Remove DCHECK that was causing false positives.

services/ui/ws/platform_display.cc

 // Copyright 2014 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 "services/ui/ws/platform_display.h"
 
 #include "base/numerics/safe_conversions.h"
 #include "build/build_config.h"
 #include "cc/ipc/quads.mojom.h"
 #include "cc/output/copy_output_request.h"
@@ skipping 204 matching lines @@
   // trying to have one way of doing things, we need to standardize on and
   // emulate Windows character events.
   //
   // This is equivalent to what we're doing in the current Linux port, but
   // done once instead of done multiple times in different places.
   if (event->type() == ui::ET_KEY_PRESSED) {
     ui::KeyEvent* key_press_event = event->AsKeyEvent();
     ui::KeyEvent char_event(key_press_event->GetCharacter(),
                             key_press_event->key_code(),
                             key_press_event->flags());
-    DCHECK_EQ(key_press_event->GetCharacter(), char_event.GetCharacter());
+    // We don't check that GetCharacter() is equal because changing a key event
+    // with an accelerator to a character event can change the character, for
+    // example, from 'M' to '^M'.
     DCHECK_EQ(key_press_event->key_code(), char_event.key_code());
     DCHECK_EQ(key_press_event->flags(), char_event.flags());
     delegate_->OnEvent(char_event);
   }
 #endif
 }
 
 void DefaultPlatformDisplay::OnCloseRequest() {
   platform_window_->Close();
 }
@@ skipping 41 matching lines @@
   return delegate_ ? delegate_->IsInHighContrastMode() : false;
 }
 
 const ViewportMetrics& DefaultPlatformDisplay::GetViewportMetrics() {
   return metrics_;
 }
 
 }  // namespace ws
 
 }  // namespace ui