The on screen keyboard on Windows 8+ should not obscure the input field.

content/public/browser/render_widget_host_view.h

 // 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.
 
 #ifndef CONTENT_PUBLIC_BROWSER_RENDER_WIDGET_HOST_VIEW_H_
 #define CONTENT_PUBLIC_BROWSER_RENDER_WIDGET_HOST_VIEW_H_
 
 #include <memory>
 
 #include "base/strings/string16.h"
 #include "build/build_config.h"
 #include "content/common/content_export.h"
 #include "third_party/WebKit/public/web/WebInputEvent.h"
 #include "third_party/skia/include/core/SkBitmap.h"
 #include "third_party/skia/include/core/SkColor.h"
 #include "third_party/skia/include/core/SkRegion.h"
 #include "ui/gfx/native_widget_types.h"
 
 class GURL;
 
 namespace gfx {
+class Point;
 class Rect;
 class Size;
 }
 
 namespace ui {
 class TextInputClient;
 class AcceleratedWidgetMac;
 }
 
 namespace content {
@@ skipping 121 matching lines @@
   // Begin subscribing for presentation events and captured frames.
   // |subscriber| is now owned by this object, it will be called only on the
   // UI thread.
   virtual void BeginFrameSubscription(
       std::unique_ptr<RenderWidgetHostViewFrameSubscriber> subscriber) = 0;
 
   // End subscribing for frame presentation events. FrameSubscriber will be
   // deleted after this call.
   virtual void EndFrameSubscription() = 0;
 
+  // Notification that a node was touched.
+  // The |location_dips_screen| parameter contains the location where the touch
+  // occurred in DIPs in screen coordinates.
+  // The |editable| parameter indicates if the node is editable, for e.g.
+  // an input field, etc.
+  virtual void FocusedNodeTouched(const gfx::Point& location_dips_screen,
+                                  bool editable) = 0;
+
 #if defined(OS_MACOSX)
   // Return the accelerated widget which hosts the CALayers that draw the
   // content of the view in GetNativeView. This may be null.
   virtual ui::AcceleratedWidgetMac* GetAcceleratedWidgetMac() const = 0;
 
   // Set the view's active state (i.e., tint state of controls).
   virtual void SetActive(bool active) = 0;
 
   // Brings up the dictionary showing a definition for the selected text.
   virtual void ShowDefinitionForSelection() = 0;
 
   // Returns |true| if Mac OS X text to speech is supported.
   virtual bool SupportsSpeech() const = 0;
   // Tells the view to speak the currently selected text.
   virtual void SpeakSelection() = 0;
   // Returns |true| if text is currently being spoken by Mac OS X.
   virtual bool IsSpeaking() const = 0;
   // Stops speaking, if it is currently in progress.
   virtual void StopSpeaking() = 0;
 #endif  // defined(OS_MACOSX)
 };
 
 }  // namespace content
 
 #endif  // CONTENT_PUBLIC_BROWSER_RENDER_WIDGET_HOST_VIEW_H_