Redesigns the text input focus handling.

content/public/browser/render_widget_host_view.h

Index: content/public/browser/render_widget_host_view.h
diff --git a/content/public/browser/render_widget_host_view.h b/content/public/browser/render_widget_host_view.h
index 7c89136bc9656844a692c397e25ead1680cfca5d..b3a17301fe43afd14e9f2bcf9aadb3c9e47fe34e 100644
--- a/content/public/browser/render_widget_host_view.h
+++ b/content/public/browser/render_widget_host_view.h
@@ -24,6 +24,10 @@ class Rect;
 class Size;
 }
 
+namespace ui {
+class TextInputClient;
+}
+
 namespace content {
 
 class BrowserAccessibilityManager;
@@ -86,6 +90,9 @@ class CONTENT_EXPORT RenderWidgetHostView {
   virtual bool HasFocus() const = 0;
   // Returns true is the current display surface is available.
   virtual bool IsSurfaceAvailableForCopy() const = 0;
+  // Returns a ui::TextInputClient to support text input or NULL if this RWHV

[msw, 2014/03/11 00:58:50]

nit: order after GetNativeView* or GetSelectedText() not with Views functions.

[Yuki, 2014/03/11 15:27:37]

Done.

+  // doesn't support text input.
+  virtual ui::TextInputClient* GetTextInputClient() = 0;
 
   // Shows/hides the view.  These must always be called together in pairs.
   // It is not legal to call Hide() multiple times in a row.