Revert r115276, it broke PanelDownloadTest.Download in interactive_ui_tests

chrome/browser/instant/instant_controller.cc

Index: chrome/browser/instant/instant_controller.cc
diff --git a/chrome/browser/instant/instant_controller.cc b/chrome/browser/instant/instant_controller.cc
index 74a0d72b109131b8e65a9ef7673165a900790de0..b8f10d1784b899335a91db8f248f91d8f05483cc 100644
--- a/chrome/browser/instant/instant_controller.cc
+++ b/chrome/browser/instant/instant_controller.cc
@@ -269,8 +269,8 @@ TabContentsWrapper* InstantController::CommitCurrentPreview(
     InstantCommitType type) {
   DCHECK(loader_.get());
   TabContentsWrapper* tab = ReleasePreviewContents(type);
-  tab->tab_contents()->GetController().CopyStateFromAndPrune(
-      &tab_contents_->tab_contents()->GetController());
+  tab->tab_contents()->controller().CopyStateFromAndPrune(
+      &tab_contents_->tab_contents()->controller());
   delegate_->CommitInstant(tab);
   CompleteRelease(tab);
   return tab;