- Add CefHandler::HandleTooltip and default tooltip implementation (issue #61).

- Add Common Controls to cefclient manifest because it's required for the default tooltip implementation.

git-svn-id: https://chromiumembedded.googlecode.com/svn/trunk@96 5089003a-bbd8-11dd-ad1f-f1f9622dbc98

libcef/webwidget_host.h

@@ -59,6 +59,8 @@ class WebWidgetHost {
 
   void PaintRect(const gfx::Rect& rect);
 
+  void SetTooltipText(const std::wstring& tooltip_text);
+
  protected:
   WebWidgetHost();
   ~WebWidgetHost();
@@ -73,6 +75,7 @@ class WebWidgetHost {
   void KeyEvent(UINT message, WPARAM wparam, LPARAM lparam);
   void CaptureLostEvent();
   void SetFocus(bool enable);
+  void OnNotify(WPARAM wparam, NMHDR* header);
 
   static LRESULT CALLBACK WndProc(HWND, UINT, WPARAM, LPARAM);
 #elif defined(OS_MACOSX)
@@ -108,6 +111,9 @@ class WebWidgetHost {
     painting_ = value;
 #endif
   }
+  
+  void EnsureTooltip();
+  void ResetTooltip();
 
   gfx::NativeView view_;
   WebKit::WebWidget* webwidget_;
@@ -125,6 +131,10 @@ class WebWidgetHost {
 
   WebKit::WebKeyboardEvent last_key_event_;
 
+  gfx::NativeView tooltip_view_;
+  std::wstring tooltip_text_;
+  bool tooltip_showing_;
+
 #ifndef NDEBUG
   bool painting_;
 #endif