Make Paste Popup use selection rect for positioning

content/browser/android/selection_popup_controller.cc

 // Copyright 2017 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 "content/browser/android/selection_popup_controller.h"
 
 #include "base/android/jni_android.h"
 #include "base/android/jni_string.h"
 #include "base/android/scoped_java_ref.h"
 #include "content/browser/renderer_host/render_widget_host_view_android.h"
@@ skipping 33 matching lines @@
     RenderWidgetHostViewAndroid* old_rwhva,
     RenderWidgetHostViewAndroid* new_rwhva) {
   if (old_rwhva)
     old_rwhva->set_selection_popup_controller(nullptr);
   if (new_rwhva)
     new_rwhva->set_selection_popup_controller(this);
 }
 
 void SelectionPopupController::OnSelectionEvent(
     ui::SelectionEventType event,
-    const gfx::PointF& selection_anchor,
     const gfx::RectF& selection_rect) {
   JNIEnv* env = AttachCurrentThread();
   ScopedJavaLocalRef<jobject> obj = java_obj_.get(env);
   if (obj.is_null())
     return;
 
   Java_SelectionPopupController_onSelectionEvent(
-      env, obj, event, selection_anchor.x(), selection_anchor.y(),
-      selection_rect.x(), selection_rect.y(), selection_rect.right(),
-      selection_rect.bottom());
+      env, obj, event, selection_rect.x(), selection_rect.y(),
+      selection_rect.right(), selection_rect.bottom());
 }
 
 void SelectionPopupController::OnSelectionChanged(const std::string& text) {
   JNIEnv* env = AttachCurrentThread();
   ScopedJavaLocalRef<jobject> obj = java_obj_.get(env);
   if (obj.is_null())
     return;
   ScopedJavaLocalRef<jstring> jtext = ConvertUTF8ToJavaString(env, text);
   Java_SelectionPopupController_onSelectionChanged(env, obj, jtext);
 }
 
 }  // namespace content