Add chrome-search: access from Instant overlay

chrome/browser/ui/webui/theme_source.cc

Index: chrome/browser/ui/webui/theme_source.cc
diff --git a/chrome/browser/ui/webui/theme_source.cc b/chrome/browser/ui/webui/theme_source.cc
index 304e24cbd89107349726bf7f8a49479c0af52102..53eeba7a8c2b076a16aeba1f4fa59e77f4953d05 100644
--- a/chrome/browser/ui/webui/theme_source.cc
+++ b/chrome/browser/ui/webui/theme_source.cc
@@ -7,6 +7,7 @@
 #include "base/memory/ref_counted_memory.h"
 #include "base/message_loop.h"
 #include "base/strings/string_number_conversions.h"
+#include "chrome/browser/instant/instant_io_context.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/resources_util.h"
 #include "chrome/browser/themes/theme_properties.h"
@@ -17,6 +18,7 @@
 #include "chrome/common/url_constants.h"
 #include "content/public/browser/browser_thread.h"
 #include "googleurl/src/gurl.h"
+#include "net/url_request/url_request.h"
 #include "ui/base/layout.h"
 #include "ui/base/resource/resource_bundle.h"
 #include "ui/webui/web_ui_util.h"
@@ -122,6 +124,12 @@ bool ThemeSource::ShouldReplaceExistingSource() const {
   return true;
 }
 
+bool ThemeSource::ShouldServiceRequest(const net::URLRequest* request) const {
+  if (request->url().SchemeIs(chrome::kChromeSearchScheme))
+    return InstantIOContext::ShouldServiceRequest(request);
+  return URLDataSource::ShouldServiceRequest(request);
+}
+
 ////////////////////////////////////////////////////////////////////////////////
 // ThemeSource, private: