Make messages in javascript's alert copyable....

chrome/views/controls/message_box_view.cc

 // Copyright (c) 2006-2008 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/views/controls/message_box_view.h"
 
 #include "base/message_loop.h"
+#include "base/scoped_clipboard_writer.h"
 #include "base/string_util.h"
+#include "chrome/browser/browser_process.h"
 #include "chrome/browser/views/standard_layout.h"
+#include "chrome/common/clipboard_service.h"
 #include "chrome/common/l10n_util.h"
 #include "chrome/common/message_box_flags.h"
 #include "chrome/views/controls/button/checkbox.h"
 #include "chrome/views/window/client_view.h"
 #include "grit/generated_resources.h"
 
 static const int kDefaultMessageWidth = 320;
 
 ///////////////////////////////////////////////////////////////////////////////
 // MessageBoxView, public:
@@ skipping 60 matching lines @@
 
 void MessageBoxView::ViewHierarchyChanged(bool is_add,
                                           views::View* parent,
                                           views::View* child) {
   if (child == this && is_add) {
     if (prompt_field_)
       prompt_field_->SelectAll();
   }
 }
 
+bool MessageBoxView::AcceleratorPressed(
+    const views::Accelerator& accelerator) {
+  // We only accepts Ctrl-C.
+  DCHECK(accelerator.GetKeyCode() == 'C' && accelerator.IsCtrlDown());
+
+  ClipboardService* clipboard = g_browser_process->clipboard_service();
+  if (!clipboard)
+    return false;
+
+  ScopedClipboardWriter scw(clipboard);
+  scw.WriteText(message_label_->GetText());
+  return true;
+}
+
 ///////////////////////////////////////////////////////////////////////////////
 // MessageBoxView, private:
 
 void MessageBoxView::Init(int dialog_flags,
                           const std::wstring& default_prompt) {
   message_label_->SetMultiLine(true);
   if (dialog_flags & MessageBoxFlags::kAutoDetectAlignment) {
     // Determine the alignment and directionality based on the first character
     // with strong directionality.
     l10n_util::TextDirection direction =
@@ skipping 82 matching lines @@
   }
 
   if (checkbox_) {
     layout->AddPaddingRow(0, kRelatedControlVerticalSpacing);
     layout->StartRow(0, checkbox_column_view_set_id);
     layout->AddView(checkbox_);
   }
 
   layout->AddPaddingRow(0, kRelatedControlVerticalSpacing);
 }