Cleanup: Stop creating RenderViewObservers from chrome/ in RenderViewer.

chrome/renderer/print_web_view_helper.cc

 // 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/print_web_view_helper.h"
 
 #include <string>
 
 #include "base/command_line.h"
 #include "base/logging.h"
@@ skipping 96 matching lines @@
 }
 
 PrepareFrameAndViewForPrint::~PrepareFrameAndViewForPrint() {
   frame_->printEnd();
   web_view_->resize(prev_view_size_);
   if (WebFrame* web_frame = web_view_->mainFrame())
     web_frame->setScrollOffset(prev_scroll_offset_);
 }
 
 
+RENDER_VIEW_OBSERVER_TRACKER_MAP(PrintWebViewHelper);
+
 PrintWebViewHelper::PrintWebViewHelper(RenderView* render_view)
     : RenderViewObserver(render_view),
+      RenderViewObserverTracker<PrintWebViewHelper>(render_view),
       print_web_view_(NULL),
       script_initiated_preview_frame_(NULL),
       context_menu_preview_node_(NULL),
       user_cancelled_scripted_print_count_(0) {
   is_preview_ = CommandLine::ForCurrentProcess()->HasSwitch(
       switches::kEnablePrintPreview);
 }
 
 PrintWebViewHelper::~PrintWebViewHelper() {}
 
-void PrintWebViewHelper::ScriptInitiatedPrint(WebKit::WebFrame* frame) {
+// Prints |frame| which called window.print().
+void PrintWebViewHelper::printPage(WebKit::WebFrame* frame) {
   DCHECK(frame);
 
   if (IsScriptInitiatedPrintTooFrequent(frame))
     return;
   IncrementScriptedPrintCount();
 
   if (is_preview_) {
     script_initiated_preview_frame_ = frame;
     if (!render_view()->Send(new PrintHostMsg_ScriptInitiatedPrintPreview(
         render_view()->routing_id()))) {
@@ skipping 545 matching lines @@
 
 void PrintWebViewHelper::ResetScriptedPrintCount() {
   // Reset cancel counter on successful print.
   user_cancelled_scripted_print_count_ = 0;
 }
 
 void PrintWebViewHelper::IncrementScriptedPrintCount() {
   ++user_cancelled_scripted_print_count_;
   last_cancelled_script_print_ = base::Time::Now();
 }