Cleanup: Remove the last traces of Instant Search on Android

chrome/browser/ui/android/toolbar/toolbar_model_android.cc

 // Copyright 2014 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/android/toolbar/toolbar_model_android.h"
 
 #include "base/android/jni_string.h"
-#include "base/metrics/field_trial.h"
-#include "chrome/browser/profiles/profile.h"
-#include "chrome/browser/search/search.h"
-#include "chrome/browser/search_engines/ui_thread_search_terms_data.h"
 #include "components/toolbar/toolbar_model_impl.h"
 #include "content/public/browser/navigation_entry.h"
 #include "content/public/browser/ssl_status.h"
 #include "content/public/browser/web_contents.h"
 #include "content/public/common/content_constants.h"
 #include "jni/ToolbarModel_jni.h"
-#include "net/cert/x509_certificate.h"
 
 using base::android::JavaParamRef;
 using base::android::ScopedJavaLocalRef;
 
 ToolbarModelAndroid::ToolbarModelAndroid(JNIEnv* env, jobject jdelegate)
     : toolbar_model_(new ToolbarModelImpl(this, content::kMaxURLDisplayChars)),
       weak_java_delegate_(env, jdelegate) {}
 
 ToolbarModelAndroid::~ToolbarModelAndroid() {
 }
@@ skipping 25 matching lines @@
   return RegisterNativesImpl(env);
 }
 
 // static
 jlong Init(JNIEnv* env,
            const JavaParamRef<jobject>& obj,
            const JavaParamRef<jobject>& delegate) {
   ToolbarModelAndroid* toolbar_model = new ToolbarModelAndroid(env, delegate);
   return reinterpret_cast<intptr_t>(toolbar_model);
 }