Fix up picture clip bounds in SkiaServe

tools/skiaserve/urlhandlers/UrlHandler.h

 /*
  * Copyright 2016 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkColor.h"
 
 struct MHD_Connection;
@@ skipping 23 matching lines @@
                const char* url, const char* method,
                const char* upload_data, size_t* upload_data_size) override;
 };
 
 class BreakHandler : public UrlHandler {
 public:
     bool canHandle(const char* method, const char* url) override;
     int handle(Request* request, MHD_Connection* connection,
                const char* url, const char* method,
                const char* upload_data, size_t* upload_data_size) override;
-private:
-    static SkColor GetPixel(Request* request, int x, int y);
 };
 
 /**
    Updates the clip visualization alpha. On all subsequent /img requests, the clip will be drawn in
    black with the specified alpha. 0 = no visible clip, 255 = fully opaque clip.
  */
 class ClipAlphaHandler : public UrlHandler {
 public:
     bool canHandle(const char* method, const char* url) override;
     int handle(Request* request, MHD_Connection* connection,
@@ skipping 68 matching lines @@
 };
 
 class RootHandler : public UrlHandler {
 public:
     bool canHandle(const char* method, const char* url) override;
     int handle(Request* request, MHD_Connection* connection,
                const char* url, const char* method,
                const char* upload_data, size_t* upload_data_size) override;
 };