Add support to enable EmbeddedSearch API in Android Chrome search results page.

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 <set>
 
 #include "base/memory/scoped_ptr.h"
 #include "base/metrics/histogram.h"
@@ skipping 380 matching lines @@
     return;
 
   if (!history::MostVisitedTilesExperiment::IsDontShowOpenURLsEnabled())
     return;
 
   history::MostVisitedTilesExperiment::RemoveItemsMatchingOpenTabs(
       delegate_->GetOpenUrls(), items);
 }
 
 void SearchTabHelper::FocusOmnibox(OmniboxFocusState state) {
+// TODO(kmadhusu): Move platform specific code from here and get rid of #ifdef.
+#if !defined(OS_ANDROID)
   OmniboxView* omnibox = GetOmniboxView();
   if (!omnibox)
     return;
 
   // Do not add a default case in the switch block for the following reasons:
   // (1) Explicitly handle the new states. If new states are added in the
   // OmniboxFocusState, the compiler will warn the developer to handle the new
   // states.
   // (2) An attacker may control the renderer and sends the browser process a
   // malformed IPC. This function responds to the invalid |state| values by
@@ skipping 15 matching lines @@
       omnibox->ShowImeIfNeeded();
       break;
     case OMNIBOX_FOCUS_NONE:
       // Remove focus only if the popup is closed. This will prevent someone
       // from changing the omnibox value and closing the popup without user
       // interaction.
       if (!omnibox->model()->popup_model()->IsOpen())
         web_contents()->GetView()->Focus();
       break;
   }
+#endif
 }
 
 void SearchTabHelper::NavigateToURL(const GURL& url,
                                     WindowOpenDisposition disposition,
                                     bool is_most_visited_item_url) {
   if (is_most_visited_item_url) {
     content::RecordAction(
         base::UserMetricsAction("InstantExtended.MostVisitedClicked"));
   }
 
@@ skipping 29 matching lines @@
       web_contents())->LogMostVisitedImpression(position, provider);
 }
 
 void SearchTabHelper::OnLogMostVisitedNavigation(
     int position, const base::string16& provider) {
   NTPUserDataLogger::GetOrCreateFromWebContents(
       web_contents())->LogMostVisitedNavigation(position, provider);
 }
 
 void SearchTabHelper::PasteIntoOmnibox(const base::string16& text) {
+// TODO(kmadhusu): Move platform specific code from here and get rid of #ifdef.
+#if !defined(OS_ANDROID)
   OmniboxView* omnibox = GetOmniboxView();
   if (!omnibox)
     return;
-
   // The first case is for right click to paste, where the text is retrieved
   // from the clipboard already sanitized. The second case is needed to handle
   // drag-and-drop value and it has to be sanitazed before setting it into the
   // omnibox.
   base::string16 text_to_paste = text.empty() ? omnibox->GetClipboardText() :
       omnibox->SanitizeTextForPaste(text);
 
   if (text_to_paste.empty())
     return;
 
   if (!omnibox->model()->has_focus())
     omnibox->SetFocus();
 
   omnibox->OnBeforePossibleChange();
   omnibox->model()->OnPaste();
   omnibox->SetUserText(text_to_paste);
   omnibox->OnAfterPossibleChange();
+#endif
 }
 
 void SearchTabHelper::OnChromeIdentityCheck(const base::string16& identity) {
   SigninManagerBase* manager = SigninManagerFactory::GetForProfile(profile());
   if (manager) {
     const base::string16 username =
         base::UTF8ToUTF16(manager->GetAuthenticatedUsername());
     ipc_router_.SendChromeIdentityCheckResult(identity,
                                               identity == username);
   }
@@ skipping 55 matching lines @@
 
 bool SearchTabHelper::IsInputInProgress() const {
   OmniboxView* omnibox = GetOmniboxView();
   return !model_.mode().is_ntp() && omnibox &&
       omnibox->model()->focus_state() == OMNIBOX_FOCUS_VISIBLE;
 }
 
 OmniboxView* SearchTabHelper::GetOmniboxView() const {
   return delegate_ ? delegate_->GetOmniboxView() : NULL;
 }