Remove unused argument from WebContentsImpl::IsFullscreenForCurrentTab.

content/browser/renderer_host/render_widget_host_view_aura_unittest.cc

 // 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.
 
 #include "content/browser/renderer_host/render_widget_host_view_aura.h"
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include <tuple>
@@ skipping 158 matching lines @@
     return true;
   }
   void Cut() override {}
   void Copy() override {}
   void Paste() override {}
   void SelectAll() override {}
   void SendScreenRects() override {
     if (rwh_)
       rwh_->SendScreenRects();
   }
-  bool IsFullscreenForCurrentTab(
-      RenderWidgetHostImpl* render_widget_host) const override {
-    return is_fullscreen_;
-  }
+  bool IsFullscreenForCurrentTab() const override { return is_fullscreen_; }
 
  private:
   std::unique_ptr<NativeWebKeyboardEvent> last_event_;
   RenderWidgetHostImpl* rwh_;
   bool is_fullscreen_;
 
   DISALLOW_COPY_AND_ASSIGN(MockRenderWidgetHostDelegate);
 };
 
 // Simple observer that keeps track of changes to a window for tests.
@@ skipping 4291 matching lines @@
   view()->OnGestureEvent(&gesture_event);
 
   EXPECT_TRUE(delegate->context_menu_request_received());
   EXPECT_EQ(delegate->context_menu_source_type(), ui::MENU_SOURCE_TOUCH);
 #endif
 
   RenderViewHostFactory::set_is_real_render_view_host(false);
 }
 
 }  // namespace content