Paste popup is positioning properly during content scroll.

content/browser/renderer_host/input/touch_selection_controller.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 "content/browser/renderer_host/input/touch_selection_controller.h"
 
 #include "base/logging.h"
 #include "third_party/WebKit/public/web/WebInputEvent.h"
 
 namespace content {
@@ skipping 68 matching lines @@
        end_orientation_ != TOUCH_HANDLE_ORIENTATION_UNDEFINED)) {
     OnSelectionChanged();
     return;
   }
 
   if (start_orientation_ == TOUCH_HANDLE_CENTER && selection_editable_) {
     OnInsertionChanged();
     return;
   }
 
-  HideAndDisallowShowingAutomatically();
+  if (last_input_event_type_ != LONG_PRESS)

[jdduke (slow), 2014/08/02 14:23:00]

Did you change this? This looks wrong, and it's confusing to combine such a
change with a rebase.

[AKVT, 2014/08/04 13:45:32]

Corrected the condition to show the insertion handle if we long press on an
empty edit field, because Paste Popup position depends on insertion handle
position. So resize time insertion handle position will gets used for
positioning Paste Popup correctly.

+    HideAndDisallowShowingAutomatically();
 }
 
 bool TouchSelectionController::WillHandleTouchEvent(
     const ui::MotionEvent& event) {
   if (is_insertion_active_) {
     DCHECK(insertion_handle_);
     return insertion_handle_->WillHandleTouchEvent(event);
   }
 
   if (is_selection_active_) {
@@ skipping 76 matching lines @@
   if (is_selection_active_) {
     bool needs_animate = start_selection_handle_->Animate(frame_time);
     needs_animate |= end_selection_handle_->Animate(frame_time);
     return needs_animate;
   }
 
   return false;
 }
 
 void TouchSelectionController::OnHandleDragBegin(const TouchHandle& handle) {
-  if (&handle == insertion_handle_.get())
+  if (&handle == insertion_handle_.get()) {
+    client_->OnSelectionEvent(INSERTION_DRAG_STARTED, GetStartPosition());
     return;
+  }
 
   if (&handle == start_selection_handle_.get()) {
     fixed_handle_position_ = end_selection_handle_->position() -
                              gfx::Vector2dF(0, GetEndLineHeight() / 2.f);
   } else {
     fixed_handle_position_ = start_selection_handle_->position() -
                              gfx::Vector2dF(0, GetStartLineHeight() / 2.f);
   }
 }
 
@@ skipping 174 matching lines @@
 }
 
 TouchHandle::AnimationStyle TouchSelectionController::GetAnimationStyle(
     bool was_active) const {
   return was_active && client_->SupportsAnimation()
              ? TouchHandle::ANIMATION_SMOOTH
              : TouchHandle::ANIMATION_NONE;
 }
 
 }  // namespace content