Remove FrameViewBase as base class of PluginView.

third_party/WebKit/Source/core/frame/FrameOrPlugin.h

+// 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.
+
+#ifndef FrameOrPlugin_h
+#define FrameOrPlugin_h
+
+#include "core/CoreExport.h"
+#include "platform/heap/Handle.h"
+
+namespace blink {
+
+class CullRect;
+class GraphicsContext;
+class IntRect;
+
+// FrameOrPlugin is a pure virtual class which is implemented by FrameView,
+// RemoteFrameView, and PluginView.
+class CORE_EXPORT FrameOrPlugin : public GarbageCollectedMixin {
+ public:
+  virtual ~FrameOrPlugin() {}
+
+  virtual void SetFrameRect(const IntRect& frameRect) = 0;

[dcheng, 2017/04/18 00:56:31]

Nit: frame_rect (or just remove the argument name completely here, since the
purpose is implied by the name of the method: this is normally something that
the presubmit would notice and enforce; not sure why it isn't catching this)

[joelhockey, 2017/04/18 01:05:16]

Done

+  virtual const IntRect& FrameRect() const = 0;
+  virtual void Paint(GraphicsContext&, const CullRect&) const = 0;
+  virtual void Show() = 0;
+  virtual void Hide() = 0;
+  virtual void Dispose() = 0;
+};
+
+}  // namespace blink
+#endif  // FrameOrPlugin_h