Add contextual search to the template url system

chrome/browser/search_engines/template_url_service_android.cc

 // Copyright (c) 2013 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/search_engines/template_url_service_android.h"
 
 #include "base/android/jni_string.h"
 #include "base/bind.h"
 #include "base/format_macros.h"
 #include "base/strings/stringprintf.h"
@@ skipping 178 matching lines @@
   GURL destination_url(current_url);
   if (default_provider && !query.empty()) {
     bool refined_query = default_provider->ReplaceSearchTermsInURL(current_url,
         TemplateURLRef::SearchTermsArgs(query), &destination_url);
     if (refined_query)
       return ConvertUTF8ToJavaString(env, destination_url.spec());
   }
   return base::android::ScopedJavaLocalRef<jstring>(env, NULL);
 }
 
+base::android::ScopedJavaLocalRef<jstring>
+TemplateUrlServiceAndroid::GetUrlForContextualSearchQuery(JNIEnv* env,
+                                                          jobject obj,
+                                                          jstring jquery) {
+  base::string16 query(ConvertJavaStringToUTF16(env, jquery));
+  std::string url;
+
+  if (!query.empty()) {
+    GURL gurl = GetDefaultSearchURLForSearchTerms(GetOriginalProfile(), query);
+    if (google_util::IsGoogleSearchUrl(gurl))
+      gurl = net::AppendQueryParameter(gurl, "ctxs", "1");
+    url = gurl.spec();
+  }
+
+  return ConvertUTF8ToJavaString(env, url);
+}
+
 static jlong Init(JNIEnv* env, jobject obj) {
   TemplateUrlServiceAndroid* template_url_service_android =
       new TemplateUrlServiceAndroid(env, obj);
   return reinterpret_cast<intptr_t>(template_url_service_android);
 }
 
 // static
 bool TemplateUrlServiceAndroid::Register(JNIEnv* env) {
   return RegisterNativesImpl(env);
 }