If the user selects text in the current tab, and types CTRL-F,...

chrome/browser/renderer_host/render_view_host.cc

 // Copyright (c) 2010 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/renderer_host/render_view_host.h"
 
 #include <string>
 #include <utility>
 #include <vector>
 
@@ skipping 1295 matching lines @@
                !base::i18n::IsRTL()) {
       // Force the tooltip to have RTL directionality.
       base::i18n::WrapStringWithRTLFormatting(&wrapped_tooltip_text);
     }
   }
   if (view())
     view()->SetTooltipText(wrapped_tooltip_text);
 }
 
 void RenderViewHost::OnMsgSelectionChanged(const std::string& text) {
+  selected_text_ = text;
   if (view())
     view()->SelectionChanged(text);
 }
 
 void RenderViewHost::OnMsgRunFileChooser(
     const ViewHostMsg_RunFileChooser_Params& params) {
   RenderViewHostDelegate::FileSelect* file_select_delegate =
       delegate()->GetFileSelectDelegate();
   if (file_select_delegate)
     file_select_delegate->RunFileChooser(this, params);
@@ skipping 487 matching lines @@
 
   if (!policy->CanRequestURL(renderer_id, *url)) {
     // If this renderer is not permitted to request this URL, we invalidate the
     // URL.  This prevents us from storing the blocked URL and becoming confused
     // later.
     VLOG(1) << "Blocked URL " << url->spec();
     *url = GURL();
   }
 }
 
+std::string RenderViewHost::selected_text() {
+  return selected_text_;
+}
+
 void RenderViewHost::JavaScriptStressTestControl(int cmd, int param) {
   Send(new ViewMsg_JavaScriptStressTestControl(routing_id(), cmd, param));
 }
 
 void RenderViewHost::OnExtensionPostMessage(
     int port_id, const std::string& message) {
   if (process()->profile()->GetExtensionMessageService()) {
     process()->profile()->GetExtensionMessageService()->
         PostMessageFromRenderer(port_id, message);
   }
@@ skipping 187 matching lines @@
   if (printer_query.get()) {
     BrowserThread::PostTask(
         BrowserThread::IO, FROM_HERE,
         NewRunnableMethod(printer_query.get(),
                           &printing::PrinterQuery::StopWorker));
   }
 
   // Send the printingDone msg for now.
   Send(new ViewMsg_PrintingDone(routing_id(), params.document_cookie, true));
 }