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

content/browser/renderer_host/render_widget_host_view_aura.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_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_VIEW_AURA_H_
 #define CONTENT_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_VIEW_AURA_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
@@ skipping 41 matching lines @@
 
 namespace cc {
 class CopyOutputRequest;
 class CopyOutputResult;
 class DelegatedFrameData;
 }
 
 namespace gfx {
 class Canvas;
 class Display;
+class Point;
 class Rect;
 }
 
 namespace gpu {
 struct Mailbox;
 }
 
 namespace ui {
 class CompositorLock;
 class InputMethod;
 class LocatedEvent;
+#if defined(OS_WIN)
+class OnScreenKeyboardObserver;
+#endif
 class Texture;
 class TouchSelectionController;
 }
 
 namespace content {
 #if defined(OS_WIN)
 class LegacyRenderWidgetHostHWND;
 #endif
 
 class OverscrollController;
@@ skipping 36 matching lines @@
   ui::TextInputClient* GetTextInputClient() override;
   bool HasFocus() const override;
   bool IsSurfaceAvailableForCopy() const override;
   void Show() override;
   void Hide() override;
   bool IsShowing() override;
   gfx::Rect GetViewBounds() const override;
   void SetBackgroundColor(SkColor color) override;
   gfx::Size GetVisibleViewportSize() const override;
   void SetInsets(const gfx::Insets& insets) override;
+  void FocusedNodeTouched(const gfx::Point& location_dips_screen,
+                          bool editable) override;
 
   // Overridden from RenderWidgetHostViewBase:
   void InitAsPopup(RenderWidgetHostView* parent_host_view,
                    const gfx::Rect& pos) override;
   void InitAsFullscreen(RenderWidgetHostView* reference_host_view) override;
   void Focus() override;
   void UpdateCursor(const WebCursor& cursor) override;
   void SetIsLoading(bool is_loading) override;
   void TextInputStateChanged(const TextInputState& params) override;
   void ImeCancelComposition() override;
@@ skipping 57 matching lines @@
                                      gfx::Point* transformed_point) override;
   void ProcessMouseEvent(const blink::WebMouseEvent& event) override;
   void ProcessMouseWheelEvent(const blink::WebMouseWheelEvent& event) override;
   void ProcessTouchEvent(const blink::WebTouchEvent& event,
                          const ui::LatencyInfo& latency) override;
   void ProcessGestureEvent(const blink::WebGestureEvent& event,
                            const ui::LatencyInfo& latency) override;
   void TransformPointToLocalCoordSpace(const gfx::Point& point,
                                        cc::SurfaceId original_surface,
                                        gfx::Point* transformed_point) override;
+  void FocusedNodeChanged(bool is_editable_node) override;
 
   // Overridden from ui::TextInputClient:
   void SetCompositionText(const ui::CompositionText& composition) override;
   void ConfirmCompositionText() override;
   void ClearCompositionText() override;
   void InsertText(const base::string16& text) override;
   void InsertChar(const ui::KeyEvent& event) override;
   ui::TextInputType GetTextInputType() const override;
   ui::TextInputMode GetTextInputMode() const override;
   int GetTextInputFlags() const override;
@@ skipping 415 matching lines @@
   // Set to true if the legacy_render_widget_host_HWND_ instance was destroyed
   // by Windows. This could happen if the browser window was destroyed by
   // DestroyWindow for e.g. This flag helps ensure that we don't try to create
   // the LegacyRenderWidgetHostHWND instance again as that would be a futile
   // exercise.
   bool legacy_window_destroyed_;
 
   // Contains a copy of the last context menu request parameters. Only set when
   // we receive a request to show the context menu on a long press.
   std::unique_ptr<ContextMenuParams> last_context_menu_params_;
+
+  // Set to true if we requested the on screen keyboard to be displayed.
+  bool virtual_keyboard_requested_;
+
+  std::unique_ptr<ui::OnScreenKeyboardObserver> keyboard_observer_;
 #endif
 
   bool has_snapped_to_boundary_;
 
   std::unique_ptr<TouchSelectionControllerClientAura>
       selection_controller_client_;
   std::unique_ptr<ui::TouchSelectionController> selection_controller_;
 
   std::unique_ptr<OverscrollController> overscroll_controller_;
 
@@ skipping 22 matching lines @@
   bool disable_input_event_router_for_testing_;
 
   base::WeakPtrFactory<RenderWidgetHostViewAura> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(RenderWidgetHostViewAura);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_VIEW_AURA_H_