Start caching the theme color in web_contents

content/browser/web_contents/web_contents_android.cc

 // Copyright 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 "content/browser/web_contents/web_contents_android.h"
 
 #include "base/android/jni_android.h"
 #include "base/android/jni_string.h"
 #include "base/command_line.h"
 #include "base/json/json_writer.h"
@@ skipping 477 matching lines @@
       ConvertJavaStringToUTF8(env, message)));
 }
 
 jboolean WebContentsAndroid::HasAccessedInitialDocument(
     JNIEnv* env,
     jobject jobj) {
   return static_cast<content::WebContentsImpl*>(web_contents_)->
       HasAccessedInitialDocument();
 }
 
+jint WebContentsAndroid::GetThemeColor(JNIEnv* env, jobject obj) {
+  return web_contents_->GetThemeColor();
+}
+
 }  // namespace content