[Extensions] Polish the suspicious extension bubble

chrome/browser/ui/views/extensions/extension_message_bubble_view.cc

 // Copyright (c) 2013 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 "chrome/browser/ui/views/extensions/extension_message_bubble_view.h"
 
 #include "base/strings/utf_string_conversions.h"
 #include "chrome/browser/extensions/extension_message_bubble_controller.h"
 #include "chrome/browser/ui/view_ids.h"
 #include "chrome/grit/locale_settings.h"
@@ skipping 105 matching lines @@
   views::ColumnSet* upper_columns = layout->AddColumnSet(text_column_set_id);
   upper_columns->AddColumn(
       views::GridLayout::LEADING, views::GridLayout::LEADING,
       0, views::GridLayout::USE_PREF, 0, 0);
   layout->StartRow(0, text_column_set_id);
 
   views::Label* message = new views::Label();
   message->SetMultiLine(true);
   message->SetHorizontalAlignment(gfx::ALIGN_LEFT);
   message->SetText(delegate->GetMessageBody(
-      anchor_view_->id() == VIEW_ID_BROWSER_ACTION));
+      anchor_view_->id() == VIEW_ID_BROWSER_ACTION,
+      controller_->GetExtensionIdList().size() == 1));
   message->SizeToFit(views::Widget::GetLocalizedContentsWidth(
       IDS_EXTENSION_WIPEOUT_BUBBLE_WIDTH_CHARS));
   layout->AddView(message);
 
   if (delegate->ShouldShowExtensionList()) {
     const int extension_list_column_set_id = 2;
     views::ColumnSet* middle_columns =
         layout->AddColumnSet(extension_list_column_set_id);
     middle_columns->AddPaddingColumn(0, kExtensionListPadding);
     middle_columns->AddColumn(
@@ skipping 69 matching lines @@
   state->role = ui::AX_ROLE_ALERT;
 }
 
 void ExtensionMessageBubbleView::ViewHierarchyChanged(
     const ViewHierarchyChangedDetails& details) {
   if (details.is_add && details.child == this)
     NotifyAccessibilityEvent(ui::AX_EVENT_ALERT, true);
 }
 
 }  // namespace extensions