use select() so we can wait for XEvents or our timer

include/views/SkOSWindow_Unix.h

Index: include/views/SkOSWindow_Unix.h
diff --git a/include/views/SkOSWindow_Unix.h b/include/views/SkOSWindow_Unix.h
index 89265a4367ab2195d06fd7104ea4c5df6e2bfbc5..8a55ef455ef1f98892345a4d11efba03718a8b74 100644
--- a/include/views/SkOSWindow_Unix.h
+++ b/include/views/SkOSWindow_Unix.h
@@ -32,7 +32,6 @@ public:
     void* getDisplay() const { return (void*)fUnixWindow.fDisplay; }
     void* getUnixWindow() const { return (void*)&fUnixWindow; }
     void loop();
-    void post_linuxevent();
 
     enum SkBackEndTypes {
         kNone_BackEndType,
@@ -54,14 +53,16 @@ public:
 
 protected:
     // Overridden from from SkWindow:
-    virtual bool onEvent(const SkEvent&) SK_OVERRIDE;
-    virtual void onHandleInval(const SkIRect&) SK_OVERRIDE;
-    virtual bool onHandleChar(SkUnichar) SK_OVERRIDE;
-    virtual bool onHandleKey(SkKey) SK_OVERRIDE;
-    virtual bool onHandleKeyUp(SkKey) SK_OVERRIDE;
     virtual void onSetTitle(const char title[]) SK_OVERRIDE;
 
 private:
+    enum NextXEventResult {
+        kContinue_NextXEventResult,
+        kQuitRequest_NextXEventResult,
+        kPaintRequest_NextXEventResult
+    };
+
+    NextXEventResult nextXEvent();
     void doPaint();
     void mapWindowAndWait();