Plumbing for browser process to access text surrounding selection.

content/browser/renderer_host/render_widget_host_view_base.h

Index: content/browser/renderer_host/render_widget_host_view_base.h
diff --git a/content/browser/renderer_host/render_widget_host_view_base.h b/content/browser/renderer_host/render_widget_host_view_base.h
index f86811a5ad091b6cf18b4f3d761d041b2ff20e83..9bf2e60a48a0ce48fab36cd558a16b1552a9e12b 100644
--- a/content/browser/renderer_host/render_widget_host_view_base.h
+++ b/content/browser/renderer_host/render_widget_host_view_base.h
@@ -315,6 +315,10 @@ class CONTENT_EXPORT RenderWidgetHostViewBase : public RenderWidgetHostView,
 
   virtual gfx::GLSurfaceHandle GetCompositingSurface() = 0;
 
+  virtual void OnTextSurroundingSelectionResponse(const base::string16& content,
+                                                  size_t start_offset,
+                                                  size_t end_offset) {};
+
 #if defined(OS_ANDROID)
   virtual void ShowDisambiguationPopup(const gfx::Rect& target_rect,
                                        const SkBitmap& zoomed_bitmap) = 0;