Get rid of temporary render_view_host.h.

chrome/browser/ui/webui/print_preview_handler.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/browser/ui/webui/print_preview_handler.h"
 
 #include "base/values.h"
-#include "chrome/browser/renderer_host/render_view_host.h"
+#include "content/browser/renderer_host/render_view_host.h"
 #include "printing/backend/print_backend.h"
 
 PrintPreviewHandler::PrintPreviewHandler()
     : print_backend_(printing::PrintBackend::CreateInstance(NULL)) {
 }
 
 PrintPreviewHandler::~PrintPreviewHandler() {
 }
 
 void PrintPreviewHandler::RegisterMessages() {
@@ skipping 12 matching lines @@
        index != printer_list.end(); ++index) {
     printers.Append(new StringValue(index->printer_name));
   }
 
   web_ui_->CallJavascriptFunction(L"setPrinters", printers);
 }
 
 void PrintPreviewHandler::HandlePrint(const ListValue*) {
   web_ui_->GetRenderViewHost()->PrintForPrintPreview();
 }