Store physical backing size in ViewAndroid

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 <string>
 #include <utility>
@@ skipping 382 matching lines @@
   content_surface_ = surface;
   compositor_->SurfaceChanged(surface);
   JNIEnv* env = base::android::AttachCurrentThread();
   Java_VrShellImpl_contentSurfaceChanged(env, j_vr_shell_.obj());
 }
 
 void VrShell::GvrDelegateReady() {
   delegate_provider_->SetPresentingDelegate(this, gvr_api_);
 }
 
+void VrShell::OnPhysicalBackingSizeChanged(
+    JNIEnv* env,
+    const JavaParamRef<jobject>& obj,
+    const JavaParamRef<jobject>& jweb_contents,
+    jint width,
+    jint height) {
+  content::WebContents* web_contents =
+      content::WebContents::FromJavaWebContents(jweb_contents);
+  gfx::Size size(width, height);
+  web_contents->GetNativeView()->OnPhysicalBackingSizeChanged(size);
+}
+
 void VrShell::ContentPhysicalBoundsChanged(JNIEnv* env,
                                            const JavaParamRef<jobject>& object,
                                            jint width,
                                            jint height,
                                            jfloat dpr) {
   TRACE_EVENT0("gpu", "VrShell::ContentPhysicalBoundsChanged");
   // TODO(acondor): Set the device scale factor for font rendering on the
   // VR Shell textures.
   PostToGlThreadWhenReady(base::Bind(&VrShellGl::ContentPhysicalBoundsChanged,
                                      gl_thread_->GetVrShellGl(), width,
@@ skipping 143 matching lines @@
            jlong gvr_api,
            jboolean reprojected_rendering) {
   return reinterpret_cast<intptr_t>(new VrShell(
       env, obj, reinterpret_cast<ui::WindowAndroid*>(window_android),
       for_web_vr, in_cct,
       VrShellDelegate::GetNativeVrShellDelegate(env, delegate),
       reinterpret_cast<gvr_context*>(gvr_api), reprojected_rendering));
 }
 
 }  // namespace vr_shell