Upstream rewrite of Instant.

chrome/browser/instant/instant_controller_delegate.h

Index: chrome/browser/instant/instant_controller_delegate.h
diff --git a/chrome/browser/instant/instant_controller_delegate.h b/chrome/browser/instant/instant_controller_delegate.h
index 306cd079e7ffd8be694bdd05156287e8580630dd..5fd5b2d1252226531052fc30da15b12bcf3dc8da 100644
--- a/chrome/browser/instant/instant_controller_delegate.h
+++ b/chrome/browser/instant/instant_controller_delegate.h
@@ -14,15 +14,16 @@ namespace gfx {
 class Rect;
 }
 
-// |InstantController| calls these methods on its delegate (usually |Browser|)
-// to ask for the Instant preview to be shown, hidden, etc. In the following
-// methods, if a |TabContents| argument is explicitly supplied, the delegate
-// MUST use it. Otherwise, the preview TabContents can be gotten by calling
-// |InstantController::GetPreviewContents| (note that it may return NULL).
+// InstantController calls these methods on its delegate (Browser, via
+// BrowserInstantController) to ask for the Instant preview to be shown,
+// hidden, etc. In the following methods, if a TabContents argument is
+// explicitly supplied, the delegate MUST use it. Otherwise, the preview
+// TabContents can be gotten by calling InstantController::GetPreviewContents()
+// (note that it may return NULL).
 class InstantControllerDelegate {
  public:
   // Show the preview.
-  virtual void ShowInstant(TabContents* preview_contents) = 0;
+  virtual void ShowInstant() = 0;
 
   // Hide any preview currently being shown.
   virtual void HideInstant() = 0;