Create a dialog box for the about:network view and kill the tab type....

chrome/views/text_field.cc

Index: chrome/views/text_field.cc
===================================================================
--- chrome/views/text_field.cc	(revision 8567)
+++ chrome/views/text_field.cc	(working copy)
@@ -47,6 +47,7 @@
 
   std::wstring GetText() const;
   void SetText(const std::wstring& text);
+  void AppendText(const std::wstring& text);
 
   std::wstring GetSelectedText() const;
 
@@ -315,6 +316,13 @@
   SetWindowText(text_to_set.c_str());
 }
 
+void TextField::Edit::AppendText(const std::wstring& text) {
+  int text_length = GetWindowTextLength();
+  ::SendMessage(m_hWnd, TBM_SETSEL, true, MAKELPARAM(text_length, text_length));
+  ::SendMessage(m_hWnd, EM_REPLACESEL, false,
+                reinterpret_cast<LPARAM>(text.c_str()));
+}
+
 std::wstring TextField::Edit::GetSelectedText() const {
   // Figure out the length of the selection.
   long start;
@@ -953,6 +961,12 @@
     edit_->SetText(text);
 }
 
+void TextField::AppendText(const std::wstring& text) {
+  text_ += text;
+  if (edit_)
+    edit_->AppendText(text);
+}
+
 void TextField::CalculateInsets(gfx::Insets* insets) {
   DCHECK(insets);