Move instant support to SearchTabHelper.

chrome/browser/ui/search/search_tab_helper.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/search/search_tab_helper.h"
 
 #include "chrome/browser/search/search.h"
 #include "chrome/common/render_messages.h"
 #include "chrome/common/url_constants.h"
 #include "content/public/browser/navigation_entry.h"
@@ skipping 72 matching lines @@
   UpdateMode();
 }
 
 bool SearchTabHelper::OnMessageReceived(const IPC::Message& message) {
   bool handled = true;
   IPC_BEGIN_MESSAGE_MAP(SearchTabHelper, message)
     IPC_MESSAGE_HANDLER(ChromeViewHostMsg_SearchBoxShowBars,
                         OnSearchBoxShowBars)
     IPC_MESSAGE_HANDLER(ChromeViewHostMsg_SearchBoxHideBars,
                         OnSearchBoxHideBars)
+    IPC_MESSAGE_HANDLER(ChromeViewHostMsg_InstantSupportDetermined,
+                        OnInstantSupportDeterminedMsgReceived)
     IPC_MESSAGE_UNHANDLED(handled = false)
   IPC_END_MESSAGE_MAP()
   return handled;
 }
 
+void SearchTabHelper::DidFinishLoad(
+    int64 /* frame_id */,
+    const GURL& /* validated_url */,
+    bool is_main_frame,
+    content::RenderViewHost* /* render_view_host */) {
+  if (is_main_frame)
+    DetermineIfPageSupportsInstant();
+}
+
 void SearchTabHelper::UpdateMode() {
   SearchMode::Type type = SearchMode::MODE_DEFAULT;
   SearchMode::Origin origin = SearchMode::ORIGIN_DEFAULT;
   if (IsNTP(web_contents_)) {
     type = SearchMode::MODE_NTP;
     origin = SearchMode::ORIGIN_NTP;
   } else if (IsSearchResults(web_contents_)) {
     type = SearchMode::MODE_SEARCH_RESULTS;
     origin = SearchMode::ORIGIN_SEARCH;
   }
   if (user_input_in_progress_)
     type = SearchMode::MODE_SEARCH_SUGGESTIONS;
 
   if (type == SearchMode::MODE_NTP && origin == SearchMode::ORIGIN_NTP &&
       !popup_is_open_ && !user_text_is_empty_) {
     // We're switching back (|popup_is_open_| is false) to an NTP (type and
     // mode are |NTP|) with suggestions (|user_text_is_empty_| is false), don't
     // modify visibility of top bars.  This specific omnibox state is set when
     // OmniboxEditModelChanged() is called from
     // OmniboxEditModel::SetInputInProgress() which is called from
     // OmniboxEditModel::Revert().
     model_.SetState(SearchModel::State(SearchMode(type, origin),
-                                       model_.state().top_bars_visible));
+                                       model_.state().top_bars_visible,
+                                       model_.instant_support()));
   } else {
     model_.SetMode(SearchMode(type, origin));
   }
 }
 
+void SearchTabHelper::DetermineIfPageSupportsInstant() {
+  Send(new ChromeViewMsg_DetermineIfPageSupportsInstant(routing_id()));
+}
+
 void SearchTabHelper::OnSearchBoxShowBars(int page_id) {
   if (web_contents()->IsActiveEntry(page_id))
     model_.SetTopBarsVisible(true);
 }
 
 void SearchTabHelper::OnSearchBoxHideBars(int page_id) {
   if (web_contents()->IsActiveEntry(page_id)) {
     model_.SetTopBarsVisible(false);
     Send(new ChromeViewMsg_SearchBoxBarsHidden(routing_id()));
   }
 }
+
+void SearchTabHelper::OnInstantSupportDeterminedMsgReceived(
+    int page_id,
+    bool supports_instant) {
+  if (web_contents()->IsActiveEntry(page_id))
+    model_.SetSupportsInstant(supports_instant);
+}