The first step for enabling off-the-spot IME on Pepper on ChromeOS/Linux.

chrome/browser/renderer_host/render_widget_host_view_views.h

 // Copyright (c) 2011 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_RENDERER_HOST_RENDER_WIDGET_HOST_VIEW_VIEWS_H_
 #define CHROME_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_VIEW_VIEWS_H_
 #pragma once
 
 #include <map>
 #include <string>
@@ skipping 64 matching lines @@
   virtual void ShowingContextMenu(bool showing) OVERRIDE;
   virtual BackingStore* AllocBackingStore(const gfx::Size& size) OVERRIDE;
   virtual void SetBackground(const SkBitmap& background) OVERRIDE;
   virtual void CreatePluginContainer(gfx::PluginWindowHandle id) OVERRIDE;
   virtual void DestroyPluginContainer(gfx::PluginWindowHandle id) OVERRIDE;
   virtual void SetVisuallyDeemphasized(const SkColor* color,
                                        bool animate) OVERRIDE;
   virtual bool ContainsNativeView(gfx::NativeView native_view) const OVERRIDE;
   virtual void AcceleratedCompositingActivated(bool activated) OVERRIDE;
   virtual gfx::PluginWindowHandle GetCompositingSurface() OVERRIDE;
 

[oshima, 2011/05/25 17:18:18]

ditto

+  virtual void PpapiPluginFocusChanged(bool focused) {}

[kochi, 2011/05/25 06:19:44]

Why didn't you add empty function in .cc file as you did
for mac/win?

[oshima, 2011/05/25 17:18:18]

agreed. OVERRIDE as well.

[kinaba, 2011/05/25 22:23:53]

(Removed from the patch set 2.)

+
   // On some systems, there can be two native views, where an outer native view
   // contains the inner native view (e.g. when using GTK+). This returns the
   // inner view. This can return NULL when it's not attached to a view.
   gfx::NativeView GetInnerNativeView() const;
 
   // Overridden from views::View.
   virtual std::string GetClassName() const OVERRIDE;
   virtual gfx::NativeCursor GetCursor(const views::MouseEvent& event) OVERRIDE;
   virtual bool OnMousePressed(const views::MouseEvent& event) OVERRIDE;
   virtual bool OnMouseDragged(const views::MouseEvent& event) OVERRIDE;
@@ skipping 112 matching lines @@
   // The current caret bounds.
   gfx::Rect caret_bounds_;
 
   // Indicates if there is onging composition text.
   bool has_composition_text_;
 
   DISALLOW_COPY_AND_ASSIGN(RenderWidgetHostViewViews);
 };
 
 #endif  // CHROME_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_VIEW_VIEWS_H_