Adding a tool to get images from skps

tools/flags/SkCommandLineFlags.cpp

 /*
  * Copyright 2013 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkCommandLineFlags.h"
 #include "SkTDArray.h"
 #include "SkTSort.h"
@@ skipping 132 matching lines @@
     return false;
 }
 
 SkFlagInfo* SkCommandLineFlags::gHead;
 SkString SkCommandLineFlags::gUsage;
 
 void SkCommandLineFlags::SetUsage(const char* usage) {
     gUsage.set(usage);
 }
 
+void SkCommandLineFlags::PrintUsage() {
+    SkDebugf("%s", gUsage.c_str());
+}
+
 // Maximum line length for the help message.
 #define LINE_LENGTH 72
 
 static void print_indented(const SkString& text) {
     size_t length = text.size();
     const char* currLine = text.c_str();
     const char* stop = currLine + length;
     while (currLine < stop) {
         int lineBreak = SkStrFind(currLine, "\n");
         if (lineBreak < 0) {
@@ skipping 232 matching lines @@
 }
 
 }  // namespace
 
 bool SkCommandLineFlags::ShouldSkip(const SkTDArray<const char*>& strings, const char* name) {
     return ShouldSkipImpl(strings, name);
 }
 bool SkCommandLineFlags::ShouldSkip(const StringArray& strings, const char* name) {
     return ShouldSkipImpl(strings, name);
 }