Store physical backing size in ViewAndroid

chrome/browser/android/compositor/compositor_view.cc

 // Copyright 2015 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/compositor/compositor_view.h"
 
 #include <android/bitmap.h>
 #include <android/native_window_jni.h>
 
 #include <memory>
@@ skipping 149 matching lines @@
     current_surface_format_ = format;
     compositor_->SetSurface(surface);
   }
   gfx::Size size = gfx::Size(width, height);
   compositor_->SetWindowBounds(size);
   content_width_ = size.width();
   content_height_ = size.height();
   root_layer_->SetBounds(gfx::Size(content_width_, content_height_));
 }
 
+void CompositorView::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 CompositorView::SetLayoutBounds(JNIEnv* env,
                                      const JavaParamRef<jobject>& object) {
   root_layer_->SetBounds(gfx::Size(content_width_, content_height_));
 }
 
 void CompositorView::SetBackground(bool visible, SkColor color) {
   if (overlay_video_mode_)
     visible = false;
   root_layer_->SetBackgroundColor(color);
   root_layer_->SetIsDrawable(visible);
@@ skipping 78 matching lines @@
   // The Android TERMINATION_STATUS_OOM_PROTECTED hack causes us to never go
   // through here but through BrowserChildProcessHostDisconnected() instead.
 }
 
 // Register native methods
 bool RegisterCompositorView(JNIEnv* env) {
   return RegisterNativesImpl(env);
 }
 
 }  // namespace android