Adding new general bubble error message consisting of icon, message and caption. Using this message…

ui/views/bubble/bubble_delegate.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 "ui/views/bubble/bubble_delegate.h"
 
 #include "ui/base/animation/slide_animation.h"
 #include "ui/gfx/color_utils.h"
 #include "ui/gfx/rect.h"
 #include "ui/native_theme/native_theme.h"
@@ skipping 89 matching lines @@
 
 }  // namespace
 
 BubbleDelegateView::BubbleDelegateView()
     : close_on_esc_(true),
       close_on_deactivate_(true),
       anchor_view_(NULL),
       anchor_widget_(NULL),
       move_with_anchor_(false),
       arrow_(BubbleBorder::TOP_LEFT),
+      arrow_offset_(0),
       shadow_(BubbleBorder::SMALL_SHADOW),
       color_explicitly_set_(false),
       margins_(kDefaultMargin, kDefaultMargin, kDefaultMargin, kDefaultMargin),
       original_opacity_(255),
       border_widget_(NULL),
       use_focusless_(false),
       accept_events_(true),
       border_accepts_events_(true),
       adjust_if_offscreen_(true),
       parent_window_(NULL) {
   AddAccelerator(ui::Accelerator(ui::VKEY_ESCAPE, ui::EF_NONE));
   UpdateColorsFromTheme(GetNativeTheme());
 }
 
 BubbleDelegateView::BubbleDelegateView(
     View* anchor_view,
     BubbleBorder::Arrow arrow)
     : close_on_esc_(true),
       close_on_deactivate_(true),
       anchor_view_(anchor_view),
       anchor_widget_(NULL),
       move_with_anchor_(false),
       arrow_(arrow),
+      arrow_offset_(0),
       shadow_(BubbleBorder::SMALL_SHADOW),
       color_explicitly_set_(false),
       margins_(kDefaultMargin, kDefaultMargin, kDefaultMargin, kDefaultMargin),
       original_opacity_(255),
       border_widget_(NULL),
       use_focusless_(false),
       accept_events_(true),
       border_accepts_events_(true),
       adjust_if_offscreen_(true),
       parent_window_(NULL) {
@@ skipping 40 matching lines @@
 
 View* BubbleDelegateView::GetContentsView() {
   return this;
 }
 
 NonClientFrameView* BubbleDelegateView::CreateNonClientFrameView(
     Widget* widget) {
   BubbleFrameView* frame = new BubbleFrameView(margins());
   const BubbleBorder::Arrow adjusted_arrow = base::i18n::IsRTL() ?
       BubbleBorder::horizontal_mirror(arrow()) : arrow();
-  frame->SetBubbleBorder(new BubbleBorder(adjusted_arrow, shadow(), color()));
+  BubbleBorder* border = new BubbleBorder(adjusted_arrow, shadow(), color());
+  if (arrow_offset_)
+    border->set_arrow_offset(arrow_offset_);
+  frame->SetBubbleBorder(border);
   return frame;
 }
 
 void BubbleDelegateView::OnWidgetDestroying(Widget* widget) {
   if (anchor_widget() == widget) {
     anchor_widget_->RemoveObserver(this);
     anchor_view_ = NULL;
     anchor_widget_ = NULL;
   }
 }
@@ skipping 56 matching lines @@
   if (border_widget_)
     border_widget_->SetOpacity(original_opacity_);
   GetWidget()->SetOpacity(original_opacity_);
 }
 
 void BubbleDelegateView::SetAlignment(BubbleBorder::BubbleAlignment alignment) {
   GetBubbleFrameView()->bubble_border()->set_alignment(alignment);
   SizeToContents();
 }
 
+void BubbleDelegateView::SetArrowOffset(int offset) {
+  arrow_offset_ = offset;
+  if (GetBubbleFrameView() && GetBubbleFrameView()->bubble_border())

[msw, 2013/05/21 01:41:27]

You should be able to do this in the PopupMessage::MessageBubble ctor, since
GetBubbleFrameView() is a protected member of its BubbleDelegateView superclass.
Then you don't need to modify the widely used bubble implementation for a less
common setting.

[Mr4D (OOO till 08-26), 2013/05/21 17:26:40]

Well - it appears that you have never tried this before because changing the
offset post creation has several implications. But I was able to find a (in my
view not so clean) way around it and to remove this function. For the sake of
clarity and simplicity I would strongly recommend to add this function though.

Removed as requested.

+    GetBubbleFrameView()->bubble_border()->set_arrow_offset(offset);
+}
+
 bool BubbleDelegateView::AcceleratorPressed(
     const ui::Accelerator& accelerator) {
   if (!close_on_esc() || accelerator.key_code() != ui::VKEY_ESCAPE)
     return false;
   if (fade_animation_.get())
     fade_animation_->Reset();
   GetWidget()->Close();
   return true;
 }
 
@@ skipping 74 matching lines @@
 #if defined(OS_WIN) && !defined(USE_AURA)
 gfx::Rect BubbleDelegateView::GetBubbleClientBounds() const {
   gfx::Rect client_bounds(GetBubbleFrameView()->GetBoundsForClientView());
   client_bounds.Offset(
       border_widget_->GetWindowBoundsInScreen().OffsetFromOrigin());
   return client_bounds;
 }
 #endif
 
 }  // namespace views