Store physical backing size in ViewAndroid

chrome/browser/android/tab_android.h

 // Copyright (c) 2012 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.
 
 #ifndef CHROME_BROWSER_ANDROID_TAB_ANDROID_H_
 #define CHROME_BROWSER_ANDROID_TAB_ANDROID_H_
 
 #include <jni.h>
 #include <stdint.h>
 
@@ skipping 140 matching lines @@
       const base::android::JavaParamRef<jobject>& jweb_contents_delegate,
       const base::android::JavaParamRef<jobject>& jcontext_menu_populator);
   void UpdateDelegates(
         JNIEnv* env,
         const base::android::JavaParamRef<jobject>& obj,
         const base::android::JavaParamRef<jobject>& jweb_contents_delegate,
         const base::android::JavaParamRef<jobject>& jcontext_menu_populator);
   void DestroyWebContents(JNIEnv* env,
                           const base::android::JavaParamRef<jobject>& obj,
                           jboolean delete_native);
+  void OnPhysicalBackingSizeChanged(
+      JNIEnv* env,
+      const base::android::JavaParamRef<jobject>& obj,
+      const base::android::JavaParamRef<jobject>& jweb_contents,
+      jint width,
+      jint height);
   base::android::ScopedJavaLocalRef<jobject> GetProfileAndroid(
       JNIEnv* env,
       const base::android::JavaParamRef<jobject>& obj);
   TabLoadStatus LoadUrl(
       JNIEnv* env,
       const base::android::JavaParamRef<jobject>& obj,
       const base::android::JavaParamRef<jstring>& url,
       const base::android::JavaParamRef<jstring>& j_extra_headers,
       const base::android::JavaParamRef<jobject>& j_post_data,
       jint page_transition,
@@ skipping 99 matching lines @@
   scoped_refptr<content::DevToolsAgentHost> devtools_host_;
   std::unique_ptr<browser_sync::SyncedTabDelegateAndroid> synced_tab_delegate_;
 
   std::string webapp_manifest_scope_;
   bool embedded_media_experience_enabled_;
 
   DISALLOW_COPY_AND_ASSIGN(TabAndroid);
 };
 
 #endif  // CHROME_BROWSER_ANDROID_TAB_ANDROID_H_