Fix a bug in TextInputManager::GetCompositionRangeInfo

content/browser/renderer_host/text_input_manager.cc

 // Copyright 2016 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 "content/browser/renderer_host/text_input_manager.h"
 
 #include "content/browser/renderer_host/render_widget_host_impl.h"
 #include "content/browser/renderer_host/render_widget_host_view_base.h"
 #include "content/common/view_messages.h"
 #include "ui/gfx/geometry/rect.h"
@@ skipping 54 matching lines @@
 
 const TextInputManager::SelectionRegion* TextInputManager::GetSelectionRegion(
     RenderWidgetHostViewBase* view) const {
   DCHECK(!view || IsRegistered(view));
   if (!view)
     view = active_view_;
   return view ? &selection_region_map_.at(view) : nullptr;
 }
 
 const TextInputManager::CompositionRangeInfo*
-TextInputManager::GetCompositionRangeInfo(
-    RenderWidgetHostViewBase* view) const {
-  DCHECK(!view || IsRegistered(view));
-  if (!view)
-    view = active_view_;
+TextInputManager::GetCompositionRangeInfo() const {
   return active_view_ ? &composition_range_info_map_.at(active_view_) : nullptr;
 }
 
 const TextInputManager::TextSelection* TextInputManager::GetTextSelection(
     RenderWidgetHostViewBase* view) const {
   DCHECK(!view || IsRegistered(view));
   if (!view)
     view = active_view_;
   return !!view ? &text_selection_map_.at(view) : nullptr;
 }
@@ skipping 256 matching lines @@
     if (pos >= text.length()) {
       LOG(WARNING) << "The text cannot cover range (selection range's starting "
                       "point exceeds text length).";
     } else {
       selected_text_.append(text.substr(pos, n));
     }
   }
 }
 
 }  // namespace content