Introduce ViewRoot forwarding input/view events to native

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 <stdint.h>
 
 #include "base/android/jni_android.h"
 #include "base/android/jni_array.h"
@@ skipping 22 matching lines @@
 #include "content/public/browser/browser_context.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/message_port_provider.h"
 #include "content/public/browser/render_widget_host.h"
 #include "content/public/browser/web_contents.h"
 #include "content/public/common/content_switches.h"
 #include "jni/WebContentsImpl_jni.h"
 #include "net/android/network_library.h"
 #include "ui/accessibility/ax_node_data.h"
 #include "ui/android/overscroll_refresh_handler.h"
+#include "ui/android/view_root.h"
 #include "ui/gfx/android/device_display_info.h"
 #include "ui/gfx/android/java_bitmap.h"
 #include "ui/gfx/geometry/rect.h"
 
 using base::android::AttachCurrentThread;
 using base::android::ConvertJavaStringToUTF8;
 using base::android::ConvertJavaStringToUTF16;
 using base::android::ConvertUTF8ToJavaString;
 using base::android::ConvertUTF16ToJavaString;
 using base::android::JavaParamRef;
@@ skipping 605 matching lines @@
                                pref_color_type,
                                gfx::Rect(x, y, width, height),
                                result_callback);
 }
 
 void WebContentsAndroid::ReloadLoFiImages(JNIEnv* env,
                                           const JavaParamRef<jobject>& obj) {
   static_cast<WebContentsImpl*>(web_contents_)->ReloadLoFiImages();
 }
 
+void WebContentsAndroid::InitViewRoot(
+  JNIEnv* env,
+    const base::android::JavaParamRef<jobject>& jobj,
+    const base::android::JavaParamRef<jobject>& jview_root) {
+  ui::ViewRoot* view_root = ui::ViewRoot::FromJavaObject(env, jview_root);
+  view_root->AddChild(web_contents_->GetView()->GetNativeView());
+}
+
 int WebContentsAndroid::DownloadImage(
     JNIEnv* env,
     const base::android::JavaParamRef<jobject>& obj,
     const base::android::JavaParamRef<jstring>& jurl,
     jboolean is_fav_icon,
     jint max_bitmap_size,
     jboolean bypass_cache,
     const base::android::JavaParamRef<jobject>& jcallback) {
   GURL url(base::android::ConvertJavaStringToUTF8(env, jurl));
   return web_contents_->DownloadImage(
@@ skipping 56 matching lines @@
       env, obj, callback, id, http_status_code, jurl, jbitmaps, jsizes);
 }
 
 void WebContentsAndroid::SetMediaSession(
     const ScopedJavaLocalRef<jobject>& j_media_session) {
   JNIEnv* env = base::android::AttachCurrentThread();
   Java_WebContentsImpl_setMediaSession(env, obj_, j_media_session);
 }
 
 }  // namespace content