Remove a variety of no-longer-used query params.

chrome/browser/ui/search/search_ipc_router.h

Index: chrome/browser/ui/search/search_ipc_router.h
diff --git a/chrome/browser/ui/search/search_ipc_router.h b/chrome/browser/ui/search/search_ipc_router.h
index e0f3749e6063a3da6b5866b02f7215d7225d48c4..bd8d9d6500aa0205836976dd32f87b050b006aab 100644
--- a/chrome/browser/ui/search/search_ipc_router.h
+++ b/chrome/browser/ui/search/search_ipc_router.h
@@ -109,7 +109,6 @@ class SearchIPCRouter : public content::WebContentsObserver {
     virtual bool ShouldSendSetPromoInformation() = 0;
     virtual bool ShouldSendSetDisplayInstantResults() = 0;
     virtual bool ShouldSendSetSuggestionToPrefetch() = 0;
-    virtual bool ShouldSendSetOmniboxStartMargin() = 0;
     virtual bool ShouldSendSetInputInProgress(bool is_active_tab) = 0;
     virtual bool ShouldSendOmniboxFocusChanged() = 0;
     virtual bool ShouldSendMostVisitedItems() = 0;
@@ -145,10 +144,6 @@ class SearchIPCRouter : public content::WebContentsObserver {
   // Tells the page the suggestion to be prefetched if any.
   void SetSuggestionToPrefetch(const InstantSuggestion& suggestion);
 
-  // Tells the page the left margin of the omnibox. This is used by the page to
-  // align text or assets properly with the omnibox.
-  void SetOmniboxStartMargin(int start_margin);
-
   // Tells the page that user input started or stopped.
   void SetInputInProgress(bool input_in_progress);