fix build break on sample app

samplecode/SampleApp.cpp

 /*
  * Copyright 2011 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 #include "SampleApp.h"
 
 #include "SkData.h"
 #include "SkCanvas.h"
@@ skipping 707 matching lines @@
 }
 
 static SkString getSampleTitle(const SkViewFactory* sampleFactory) {
     SkView* view = (*sampleFactory)();
     SkString title;
     SampleCode::RequestTitle(view, &title);
     view->unref();
     return title;
 }
 
-bool compareSampleTitle(const SkViewFactory* first, const SkViewFactory* second) {
+static bool compareSampleTitle(const SkViewFactory* first, const SkViewFactory* second) {
     return strcmp(getSampleTitle(first).c_str(), getSampleTitle(second).c_str()) < 0;
 }
 
 SampleWindow::SampleWindow(void* hwnd, int argc, char** argv, DeviceManager* devManager)
     : INHERITED(hwnd)
     , fDevManager(NULL) {
 
     fCurrIndex = -1;
 
     this->registerPictFileSamples(argv, argc);
@@ skipping 1806 matching lines @@
     SkGraphics::Init();
     SkEvent::Init();
 }
 
 // FIXME: this should be in a header
 void application_term();
 void application_term() {
     SkEvent::Term();
     SkGraphics::Term();
 }