Introduce ViewRoot forwarding input/view events to native

chrome/browser/android/vr_shell/vr_shell.cc

 // Copyright 2016 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/android/vr_shell/vr_shell.h"
 
 #include <android/native_window_jni.h>
 
 #include "base/metrics/histogram_macros.h"
 #include "base/threading/platform_thread.h"
@@ skipping 84 matching lines @@
   gvr_context* gvr_api_;
   bool initially_web_vr_;
   bool reprojected_rendering_;
 };
 
 }  // namespace
 
 VrShell::VrShell(JNIEnv* env,
                  jobject obj,
                  content::WebContents* main_contents,
-                 ui::WindowAndroid* content_window,
+                 ui::ViewRoot* content_view_root,
                  content::WebContents* ui_contents,
-                 ui::WindowAndroid* ui_window,
+                 ui::ViewRoot* ui_view_root,
                  bool for_web_vr,
                  VrShellDelegate* delegate,
                  gvr_context* gvr_api,
                  bool reprojected_rendering)
     : WebContentsObserver(ui_contents),
       main_contents_(main_contents),
-      content_compositor_(new VrCompositor(content_window, false)),
+      content_compositor_(new VrCompositor(content_view_root, false)),
       ui_contents_(ui_contents),
-      ui_compositor_(new VrCompositor(ui_window, true)),
+      ui_compositor_(new VrCompositor(ui_view_root, true)),
       delegate_(delegate),
       metrics_helper_(new VrMetricsHelper(main_contents_)),
       main_thread_task_runner_(base::ThreadTaskRunnerHandle::Get()),
       reprojected_rendering_(reprojected_rendering),
       weak_ptr_factory_(this) {
   DCHECK(g_instance == nullptr);
   g_instance = this;
   j_vr_shell_.Reset(env, obj);
 
   content_input_manager_.reset(new VrInputManager(main_contents_));
@@ skipping 340 matching lines @@
   JNIEnv* env = base::android::AttachCurrentThread();
   Java_VrShellImpl_setUiCssSize(env, j_vr_shell_.obj(), width, height, dpr);
 }
 
 // ----------------------------------------------------------------------------
 // Native JNI methods
 // ----------------------------------------------------------------------------
 
 jlong Init(JNIEnv* env, const JavaParamRef<jobject>& obj,
            const JavaParamRef<jobject>& content_web_contents,
-           jlong content_window_android,
+           jlong content_view_root,
            const JavaParamRef<jobject>& ui_web_contents,
-           jlong ui_window_android, jboolean for_web_vr,
+           jlong ui_view_root, jboolean for_web_vr,
            const base::android::JavaParamRef<jobject>& delegate,
            jlong gvr_api, jboolean reprojected_rendering) {
   return reinterpret_cast<intptr_t>(new VrShell(
       env, obj, content::WebContents::FromJavaWebContents(content_web_contents),
-      reinterpret_cast<ui::WindowAndroid*>(content_window_android),
+      reinterpret_cast<ui::ViewRoot*>(content_view_root),
       content::WebContents::FromJavaWebContents(ui_web_contents),
-      reinterpret_cast<ui::WindowAndroid*>(ui_window_android),
+      reinterpret_cast<ui::ViewRoot*>(ui_view_root),
       for_web_vr, VrShellDelegate::GetNativeDelegate(env, delegate),
       reinterpret_cast<gvr_context*>(gvr_api), reprojected_rendering));
 }
 
 }  // namespace vr_shell