[Android WebView] Never turn off viewport and fixed layout

content/browser/android/content_settings.cc

 // Copyright (c) 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 "content/browser/android/content_settings.h"
 
 #include "base/android/jni_android.h"
 #include "base/android/jni_string.h"
 #include "content/browser/android/content_view_core_impl.h"
 #include "content/browser/renderer_host/render_view_host_delegate.h"
@@ skipping 267 matching lines @@
 
   env->SetBooleanField(
       obj,
       field_ids_->database_enabled,
       prefs.databases_enabled);
   CheckException(env);
 
   env->SetBooleanField(
       obj,
       field_ids_->use_wide_viewport,
-      prefs.viewport_enabled);
+      prefs.use_wide_viewport);
   CheckException(env);
 
   env->SetBooleanField(
       obj,
       field_ids_->load_with_overview_mode,
       prefs.initialize_at_minimum_page_scale);
   CheckException(env);
 
   env->SetBooleanField(
       obj,
@@ skipping 109 matching lines @@
 
   prefs.application_cache_enabled =
       Java_ContentSettings_getAppCacheEnabled(env, obj);
 
   prefs.local_storage_enabled = env->GetBooleanField(
       obj, field_ids_->dom_storage_enabled);
 
   prefs.databases_enabled = env->GetBooleanField(
       obj, field_ids_->database_enabled);
 
-  prefs.viewport_enabled = env->GetBooleanField(
-      obj, field_ids_->use_wide_viewport);
-  prefs.double_tap_to_zoom_enabled = prefs.viewport_enabled;
+  prefs.double_tap_to_zoom_enabled = prefs.use_wide_viewport =
+      env->GetBooleanField(obj, field_ids_->use_wide_viewport);
 
   prefs.initialize_at_minimum_page_scale = env->GetBooleanField(
       obj, field_ids_->load_with_overview_mode);
 
   prefs.user_gesture_required_for_media_playback = env->GetBooleanField(
       obj, field_ids_->media_playback_requires_user_gesture);
 
   str.Reset(
       env, static_cast<jstring>(
           env->GetObjectField(obj, field_ids_->default_video_poster_url)));
@@ skipping 32 matching lines @@
       new ContentSettings(env, obj, web_contents, is_master_mode);
   return reinterpret_cast<jint>(content_settings);
 }
 
 static jstring GetDefaultUserAgent(JNIEnv* env, jclass clazz) {
   return base::android::ConvertUTF8ToJavaString(
       env, GetContentClient()->GetUserAgent()).Release();
 }
 
 }  // namespace content