Cleanup: Stop creating RenderViewObservers from chrome/ in RenderViewer.

chrome/renderer/searchbox.cc

-// Copyright (c) 2010 The Chromium Authors. All rights reserved.
+// Copyright (c) 2011 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/renderer/searchbox.h"
 
 #include "chrome/common/render_messages.h"
 #include "chrome/renderer/searchbox_extension.h"
 #include "content/renderer/render_view.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebView.h"
 
 using WebKit::WebView;
 
 SearchBox::SearchBox(RenderView* render_view)
     : RenderViewObserver(render_view),
+      RenderViewObserverTracker<SearchBox>(render_view),
       verbatim_(false),
       selection_start_(0),
       selection_end_(0) {
 }
 
 SearchBox::~SearchBox() {
 }
 
 void SearchBox::SetSuggestions(const std::vector<std::string>& suggestions,
                                InstantCompleteBehavior behavior) {
@@ skipping 62 matching lines @@
                                                  int selection_end) {
   value_ = value;
   verbatim_ = verbatim;
   selection_start_ = selection_start;
   selection_end_ = selection_end;
   bool result = extensions_v8::SearchBoxExtension::PageSupportsInstant(
       render_view()->webview()->mainFrame());
   render_view()->Send(new ViewHostMsg_InstantSupportDetermined(
       render_view()->routing_id(), render_view()->page_id(), result));
 }