Change the SearchBox API from using the start/end margins of the location bar to using the start ma…

chrome/browser/ui/browser_instant_controller.h

Index: chrome/browser/ui/browser_instant_controller.h
diff --git a/chrome/browser/ui/browser_instant_controller.h b/chrome/browser/ui/browser_instant_controller.h
index 965fe4367be7aa435a0975757c084ce21c1fdb59..80cfde0888d316d71b5792dee5728e8d2864ebd6 100644
--- a/chrome/browser/ui/browser_instant_controller.h
+++ b/chrome/browser/ui/browser_instant_controller.h
@@ -109,8 +109,8 @@ class BrowserInstantController : public content::NotificationObserver,
                content::PageTransition transition,
                WindowOpenDisposition disposition);
 
-  // Sets the start and end margins of the omnibox text area.
-  void SetMarginSize(int start, int end);
+  // Sets the stored omnibox bounds.
+  void SetOmniboxBounds(const gfx::Rect& bounds);
 
  private:
   // Sets the value of |instant_| based on value from profile. Invoked