Move content offset to ViewAndroid

ui/android/window_android.h

Index: ui/android/window_android.h
diff --git a/ui/android/window_android.h b/ui/android/window_android.h
index 6a8fd155c764a2ffc39fac31bdb1bfbf83bdc8a6..6968f5650442d191584ffadc268668bbcda27330 100644
--- a/ui/android/window_android.h
+++ b/ui/android/window_android.h
@@ -35,16 +35,6 @@ class UI_ANDROID_EXPORT WindowAndroid : public ViewAndroid {
 
   static bool RegisterWindowAndroid(JNIEnv* env);
 
-  // The content offset is used to translate snapshots to the correct part of
-  // the window.
-  void set_content_offset(const gfx::Vector2dF& content_offset) {
-    content_offset_ = content_offset;
-  }
-
-  gfx::Vector2dF content_offset() const {
-    return content_offset_;
-  }
-
   // Compositor callback relay.
   void OnCompositingDidCommit();
 
@@ -85,7 +75,6 @@ class UI_ANDROID_EXPORT WindowAndroid : public ViewAndroid {
   WindowAndroid* GetWindowAndroid() const override;
 
   base::android::ScopedJavaGlobalRef<jobject> java_window_;
-  gfx::Vector2dF content_offset_;
   WindowAndroidCompositor* compositor_;
 
   base::ObserverList<WindowAndroidObserver> observer_list_;