Only compute LocationBarView::AvailableWidth as needed.

chrome/browser/ui/views/location_bar/location_bar_view.cc

 // Copyright (c) 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/browser/ui/views/location_bar/location_bar_view.h"
 
 #include <algorithm>
 #include <map>
 
 #include "base/stl_util.h"
@@ skipping 674 matching lines @@
     // space, but never elide it any smaller than 150 px.
     static const int kMinElidedBubbleWidth = 150;
     static const double kMaxBubbleFraction = 0.5;
     const int total_padding =
         kEdgeThickness + kBubbleHorizontalPadding + kItemEditPadding;
     ev_bubble_width = std::min(ev_bubble_width, std::max(kMinElidedBubbleWidth,
         static_cast<int>((entry_width - total_padding) * kMaxBubbleFraction)));
     entry_width -= (total_padding + ev_bubble_width);
   }
 
-  int max_edit_width = location_entry_->GetMaxEditWidth(entry_width);
+  const int max_edit_width = location_entry_->GetMaxEditWidth(entry_width);
   if (max_edit_width < 0)
     return;
-  const int available_width = AvailableWidth(max_edit_width);
 
   const bool show_keyword_hint = !keyword.empty() && is_keyword_hint;
   selected_keyword_view_->SetVisible(show_selected_keyword);
   keyword_hint_view_->SetVisible(show_keyword_hint);
   if (show_selected_keyword) {
     if (selected_keyword_view_->keyword() != keyword) {
       selected_keyword_view_->SetKeyword(keyword);
       const TemplateURL* template_url =
           TemplateURLServiceFactory::GetForProfile(profile_)->
           GetTemplateURLForKeyword(keyword);
@@ skipping 95 matching lines @@
     offset = kEdgeThickness +
         (show_selected_keyword ? kBubbleHorizontalPadding : kEdgeEditPadding);
   }
 
   // Now lay out the edit field and views that autocollapse to give it more
   // room.
   gfx::Rect location_bounds(offset, location_y, entry_width, location_height);
   if (show_selected_keyword) {
     selected_keyword_view_->SetBounds(0, location_y + kBubbleVerticalPadding,
         0, selected_keyword_view_->GetPreferredSize().height());
-    LayoutView(selected_keyword_view_, kItemEditPadding, available_width,
-               true, &location_bounds);
+    LayoutView(selected_keyword_view_, kItemEditPadding,
+               AvailableWidth(max_edit_width), true, &location_bounds);
     location_bounds.set_x(selected_keyword_view_->visible() ?
         (offset + selected_keyword_view_->width() + kItemEditPadding) :
         (kEdgeThickness + kEdgeEditPadding));
   } else if (show_keyword_hint) {
     keyword_hint_view_->SetBounds(0, location_y, 0, location_height);
     // Tricky: |entry_width| has already been enlarged by |kEditInternalSpace|.
     // But if we add a trailing view, it needs to have that enlargement be to
     // its left.  So we undo the enlargement, then include it in the padding for
     // the added view.
     location_bounds.Inset(0, 0, kEditInternalSpace, 0);
-    LayoutView(keyword_hint_view_, kItemEditPadding, available_width, false,
-               &location_bounds);
+    LayoutView(keyword_hint_view_, kItemEditPadding,
+               AvailableWidth(max_edit_width), false, &location_bounds);
     if (!keyword_hint_view_->visible()) {
       // Put back the enlargement that we undid above.
       location_bounds.Inset(0, 0, -kEditInternalSpace, 0);
     }
   }
 
   // Layout out the suggested text view right aligned to the location
   // entry. Only show the suggested text if we can fit the text from one
   // character before the end of the selection to the end of the text and the
   // suggested text. If we can't it means either the suggested text is too big,
@@ skipping 659 matching lines @@
 }
 
 void LocationBarView::CleanupFadeAnimation() {
   // Since we're no longer animating we don't need our layer.
   SetPaintToLayer(false);
   // Bubble labels don't need a transparent background anymore.
   ev_bubble_view_->SetLabelBackgroundColor(SK_ColorWHITE);
   selected_keyword_view_->SetLabelBackgroundColor(SK_ColorWHITE);
 }
 #endif  // USE_AURA