Remove unused param "width_" from SearchBox::OnMarginChange().

chrome/renderer/searchbox/searchbox.cc

 // Copyright 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/renderer/searchbox/searchbox.h"
 
 #include <string>
 
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/string_util.h"
@@ skipping 132 matching lines @@
 SearchBox::SearchBox(content::RenderView* render_view)
     : content::RenderViewObserver(render_view),
       content::RenderViewObserverTracker<SearchBox>(render_view),
     app_launcher_enabled_(false),
     is_focused_(false),
     is_input_in_progress_(false),
     is_key_capture_enabled_(false),
     display_instant_results_(false),
     most_visited_items_cache_(kMaxInstantMostVisitedItemCacheSize),
     query_(),
-    start_margin_(0),
-    width_(0) {
+    start_margin_(0) {
 }
 
 SearchBox::~SearchBox() {
 }
 
 void SearchBox::LogEvent(NTPLoggingEventType event) {
   render_view()->Send(new ChromeViewHostMsg_LogEvent(
       render_view()->GetRoutingID(), render_view()->GetPageId(), event));
 }
 
@@ skipping 189 matching lines @@
     is_focused_ = is_focused;
     DVLOG(1) << render_view() << " OnFocusChange";
     if (render_view()->GetWebView() &&
         render_view()->GetWebView()->mainFrame()) {
       extensions_v8::SearchBoxExtension::DispatchFocusChange(
           render_view()->GetWebView()->mainFrame());
     }
   }
 }
 
-void SearchBox::OnMarginChange(int margin, int width) {
+void SearchBox::OnMarginChange(int margin) {
   start_margin_ = margin;
-  width_ = width;
   if (render_view()->GetWebView() && render_view()->GetWebView()->mainFrame()) {
     extensions_v8::SearchBoxExtension::DispatchMarginChange(
         render_view()->GetWebView()->mainFrame());
   }
 }
 
 void SearchBox::OnMostVisitedChanged(
     const std::vector<InstantMostVisitedItem>& items) {
   std::vector<InstantMostVisitedItemIDPair> last_known_items;
   GetMostVisitedItems(&last_known_items);
@@ skipping 74 matching lines @@
 
 GURL SearchBox::GetURLForMostVisitedItem(InstantRestrictedID item_id) const {
   InstantMostVisitedItem item;
   return GetMostVisitedItemWithID(item_id, &item) ? item.url : GURL();
 }
 
 void SearchBox::Reset() {
   query_.clear();
   suggestion_ = InstantSuggestion();
   start_margin_ = 0;
-  width_ = 0;
   is_focused_ = false;
   is_key_capture_enabled_ = false;
   theme_info_ = ThemeBackgroundInfo();
 }