Abstract base 'ExtensionView' to Fix DEPS violation in extension_view_host.h

chrome/browser/extensions/extension_view.h

+// Copyright 2014 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_EXTENSIONS_EXTENSION_VIEW_H_
+#define CHROME_BROWSER_EXTENSIONS_EXTENSION_VIEW_H_
+
+#include "ui/gfx/native_widget_types.h"
+
+class Browser;
+
+namespace content {
+struct NativeWebKeyboardEvent;
+class WebContents;
+}
+
+namespace gfx {
+class Size;
+}
+
+namespace extensions {
+
+// Base class for platform-specific views used by extensions in the Chrome UI.
+class ExtensionView {
+ public:
+  virtual ~ExtensionView() {}
+
+  // Initialize the view, once a newly created view has been set in the host.
+  virtual void Init() = 0;
+
+  // If attached to a Browser (e.g. popups), the Browser it is attached to.
+  virtual Browser* GetBrowser() = 0;
+
+  // Returns the extension's native view.
+  virtual gfx::NativeView GetNativeView() = 0;
+
+  // Method for the ExtensionHost to notify us about the correct size for
+  // extension contents.
+  virtual void ResizeDueToAutoResize(const gfx::Size& new_size) = 0;
+
+  // Method for the ExtensionHost to notify us when the RenderViewHost has a
+  // connection.
+  virtual void RenderViewCreated() = 0;
+
+  // Handles unhandled keyboard messages coming back from the renderer process.
+  virtual void HandleKeyboardEvent(
+      content::WebContents* source,
+      const content::NativeWebKeyboardEvent& event) = 0;
+
+  // Method for the ExtensionHost to notify that the extension page has loaded.
+  virtual void DidStopLoading() = 0;
+};
+
+}  // namespace extensions
+
+#endif  // CHROME_BROWSER_EXTENSIONS_EXTENSION_VIEW_H_