Change |EnsureCaretInRect| to |EnsureCaretNotInRect|.

content/browser/renderer_host/render_widget_host_view_aura.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 "content/browser/renderer_host/render_widget_host_view_aura.h"
 
 #include <set>
 #include <utility>
 
 #include "base/auto_reset.h"
@@ skipping 1406 matching lines @@
   return true;
 }
 
 void RenderWidgetHostViewAura::ExtendSelectionAndDelete(
     size_t before, size_t after) {
   RenderFrameHostImpl* rfh = GetFocusedFrame();
   if (rfh)
     rfh->ExtendSelectionAndDelete(before, after);
 }
 
-void RenderWidgetHostViewAura::EnsureCaretInRect(const gfx::Rect& rect) {
-  gfx::Rect intersected_rect(
-      gfx::IntersectRects(rect, window_->GetBoundsInScreen()));
+void RenderWidgetHostViewAura::EnsureCaretNotInRect(const gfx::Rect& rect) {
+  gfx::Rect hiding_area_in_this_window(ConvertRectFromScreen(
+      gfx::IntersectRects(rect, window_->GetBoundsInScreen())));

[sadrul, 2016/12/08 03:34:45]

I was thinking this would be:
  gfx::Rect rect_in_local_space = ConvertRectFromScreen(rect);
  gfx::Rect hiding_area_in_this_window =
      gfx::IntersectRects(rect_in_local_space, window_->bounds());
  ...

[yhanada, 2016/12/08 03:47:49]

Sorry, I misunderstood what you meant. Done.

 
-  if (intersected_rect.IsEmpty())
+  if (hiding_area_in_this_window.IsEmpty())
     return;
 
   host_->ScrollFocusedEditableNodeIntoRect(
-      ConvertRectFromScreen(intersected_rect));
+      gfx::SubtractRects(window_->bounds(), hiding_area_in_this_window));
 }
 
 bool RenderWidgetHostViewAura::IsTextEditCommandEnabled(
     ui::TextEditCommand command) const {
   return false;
 }
 
 void RenderWidgetHostViewAura::SetTextEditCommandForNextKeyEvent(
     ui::TextEditCommand command) {}
 
@@ skipping 942 matching lines @@
 
 void RenderWidgetHostViewAura::SetPopupChild(
     RenderWidgetHostViewAura* popup_child_host_view) {
   popup_child_host_view_ = popup_child_host_view;
   event_handler_->SetPopupChild(
       popup_child_host_view,
       popup_child_host_view ? popup_child_host_view->event_handler() : nullptr);
 }
 
 }  // namespace content