Remove Instant v1 API.

chrome/renderer/chrome_content_renderer_client.cc

Index: chrome/renderer/chrome_content_renderer_client.cc
diff --git a/chrome/renderer/chrome_content_renderer_client.cc b/chrome/renderer/chrome_content_renderer_client.cc
index 3ca868a34edb163fa99ded36ff6c72c9e98b1096..bee7d72609f11a71e1fdd14d286ec0f216f34aab 100644
--- a/chrome/renderer/chrome_content_renderer_client.cc
+++ b/chrome/renderer/chrome_content_renderer_client.cc
@@ -58,7 +58,6 @@
 #include "chrome/renderer/print_web_view_helper.h"
 #include "chrome/renderer/safe_browsing/malware_dom_details.h"
 #include "chrome/renderer/safe_browsing/phishing_classifier_delegate.h"
-#include "chrome/renderer/search_extension.h"
 #include "chrome/renderer/searchbox.h"
 #include "chrome/renderer/searchbox_extension.h"
 #include "chrome/renderer/spellchecker/spellcheck.h"
@@ -177,10 +176,6 @@ void ChromeContentRendererClient::RenderThreadStarted() {
   thread->RegisterExtension(extensions_v8::ExternalExtension::Get());
   thread->RegisterExtension(extensions_v8::LoadTimesExtension::Get());
   thread->RegisterExtension(extensions_v8::SearchBoxExtension::Get());
-  v8::Extension* search_extension = extensions_v8::SearchExtension::Get();
-  // search_extension is null if not enabled.
-  if (search_extension)
-    thread->RegisterExtension(search_extension);
 
   CommandLine* command_line = CommandLine::ForCurrentProcess();
   if (command_line->HasSwitch(switches::kEnableBenchmarking))