Reland: Update TextSelection for non-user initiated events

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 2371 matching lines @@
       is_guest_view_hack_ ? this : GetFocusedWidget()
                                        ? GetFocusedWidget()->GetView()
                                        : nullptr;
 
   if (!focused_view)
     return;
 
 #if defined(USE_X11) && !defined(OS_CHROMEOS)
   const TextInputManager::TextSelection* selection =
       GetTextInputManager()->GetTextSelection(focused_view);
-  if (selection->selected_text().length()) {
+  if (selection->selected_text().length() && selection->user_initiated()) {

[Changwan Ryu, 2017/07/14 18:44:03]

This CL does more than commit description as follows:
1) It propagates new information to the browser process.
2) We check the value to fix clipboard case.

Could you file a dependent crbug and update your description?

[Peter Varga, 2017/07/17 09:36:06]

I thought the description is clear enough but I will update this.
This is not regression. It is already fixed and there is already a corresponding
crbug: https://bugs.chromium.org/p/chromium/issues/detail?id=12392
Actually, the fix for this issue suppresses all non-user initated selection
events that I would like to add back.

     // Set the CLIPBOARD_TYPE_SELECTION to the ui::Clipboard.
     ui::ScopedClipboardWriter clipboard_writer(ui::CLIPBOARD_TYPE_SELECTION);
     clipboard_writer.WriteText(selection->selected_text());
   }
 
 #elif defined(OS_WIN)
   // Some assistive software need to track the location of the caret.
   if (!GetRenderWidgetHost() || !legacy_render_widget_host_HWND_)
     return;
 
@@ skipping 18 matching lines @@
       popup_child_host_view ? popup_child_host_view->event_handler() : nullptr);
 }
 
 void RenderWidgetHostViewAura::UpdateNeedsBeginFramesInternal() {
   if (!delegated_frame_host_)
     return;
   delegated_frame_host_->SetNeedsBeginFrames(needs_begin_frames_);
 }
 
 }  // namespace content