Cleanup: remove dead code from InstantPage and InstantController

chrome/browser/ui/search/instant_controller.cc

Index: chrome/browser/ui/search/instant_controller.cc
diff --git a/chrome/browser/ui/search/instant_controller.cc b/chrome/browser/ui/search/instant_controller.cc
index d1f628f8ce72dd1fa1e586082dbd0c4b3983ea73..ce732bcf3821eed29cdd9b698992505f4e095e97 100644
--- a/chrome/browser/ui/search/instant_controller.cc
+++ b/chrome/browser/ui/search/instant_controller.cc
@@ -8,34 +8,27 @@
 #include <utility>
 
 #include "base/location.h"
-#include "base/single_thread_task_runner.h"
 #include "base/strings/stringprintf.h"
 #include "base/threading/thread_task_runner_handle.h"
 #include "chrome/browser/chrome_notification_types.h"
-#include "chrome/browser/platform_util.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/search/instant_service.h"
 #include "chrome/browser/search/instant_service_factory.h"
 #include "chrome/browser/search/search.h"
-#include "chrome/browser/search_engines/template_url_service_factory.h"
 #include "chrome/browser/ui/browser_instant_controller.h"
 #include "chrome/browser/ui/search/instant_tab.h"
 #include "chrome/browser/ui/search/search_tab_helper.h"
-#include "chrome/common/chrome_switches.h"
-#include "chrome/common/search/search_urls.h"
-#include "chrome/common/url_constants.h"
-#include "components/prefs/pref_service.h"
-#include "components/search_engines/template_url_service.h"
 #include "components/sessions/core/serialized_navigation_entry.h"
+#include "content/public/browser/navigation_controller.h"
 #include "content/public/browser/navigation_entry.h"
 #include "content/public/browser/notification_service.h"
-#include "content/public/browser/render_process_host.h"
-#include "content/public/browser/render_widget_host_view.h"
 #include "content/public/browser/web_contents.h"
-#include "net/base/escape.h"
-#include "net/base/network_change_notifier.h"
 #include "url/gurl.h"
 
+// Macro used for logging debug events. |message| should be a std::string.
+#define LOG_INSTANT_DEBUG_EVENT(controller, message) \
+    controller->LogDebugEvent(message)
+
 namespace {
 
 bool IsContentsFrom(const InstantPage* page,
@@ -175,7 +168,7 @@ void InstantController::ResetInstantTab() {
   if (!search_mode_.is_origin_default()) {
     content::WebContents* active_tab = browser_->GetActiveWebContents();
     if (!instant_tab_ || active_tab != instant_tab_->web_contents()) {
-      instant_tab_.reset(new InstantTab(this, browser_->profile()));
+      instant_tab_.reset(new InstantTab(this));
       instant_tab_->Init(active_tab);
       UpdateInfoForInstantTab();
     }