Store physical backing size in ViewAndroid

content/browser/android/content_view_render_view.h

Index: content/browser/android/content_view_render_view.h
diff --git a/content/browser/android/content_view_render_view.h b/content/browser/android/content_view_render_view.h
index 82e74436ec9c4c7c846e82f6748a0804eba74cc1..07927e1411dbde94f586c705977715329a6da11f 100644
--- a/content/browser/android/content_view_render_view.h
+++ b/content/browser/android/content_view_render_view.h
@@ -32,6 +32,12 @@ class ContentViewRenderView : public CompositorClient {
       JNIEnv* env,
       const base::android::JavaParamRef<jobject>& obj,
       const base::android::JavaParamRef<jobject>& jweb_contents);
+  void OnPhysicalBackingSizeChanged(
+      JNIEnv* env,
+      const base::android::JavaParamRef<jobject>& obj,
+      const base::android::JavaParamRef<jobject>& jweb_contents,
+      jint width,
+      jint height);
   void SurfaceCreated(JNIEnv* env,
                       const base::android::JavaParamRef<jobject>& obj);
   void SurfaceDestroyed(JNIEnv* env,