alternate ntp: implement searchbox api for instant overlay to adopt themes

chrome/browser/ui/views/frame/browser_view.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/browser/ui/views/frame/browser_view.h"
 
 #include <algorithm>
 
 #include "base/auto_reset.h"
 #include "base/command_line.h"
@@ skipping 1989 matching lines @@
 ///////////////////////////////////////////////////////////////////////////////
 // BrowserView, views::View overrides:
 
 std::string BrowserView::GetClassName() const {
   return kViewClassName;
 }
 
 void BrowserView::Layout() {
   if (ignore_layout_)
     return;
+
+  int prev_content_height = contents_container_->height();
+
   views::View::Layout();
 
   // The status bubble position requires that all other layout finish first.
   LayoutStatusBubble();
 
   MaybeStackBookmarkBarAtTop();
+
+  if (browser_->instant_controller() &&
+      prev_content_height != contents_container_->height()) {
+    browser_->instant_controller()->SetContentHeight(
+        contents_container_->height());
+  }
 }
 
 void BrowserView::PaintChildren(gfx::Canvas* canvas) {
   // Paint the |infobar_container_| last so that it may paint its
   // overlapping tabs.
   for (int i = 0; i < child_count(); ++i) {
     View* child = child_at(i);
     if (child != infobar_container_)
       child->Paint(canvas);
   }
@@ skipping 717 matching lines @@
     modal_browser->window()->Activate();
   }
 
   AppModalDialogQueue::GetInstance()->ActivateModalDialog();
 }
 
 void BrowserView::MaybeStackBookmarkBarAtTop() {
   if (bookmark_bar_view_.get())
     bookmark_bar_view_->MaybeStackAtTop();
 }