gm: add --ignoreTests flag

tools/flags/SkCommandLineFlags.h

 /*
  * Copyright 2013 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef SK_COMMAND_LINE_FLAGS_H
 #define SK_COMMAND_LINE_FLAGS_H
 
@@ skipping 107 matching lines @@
             SkASSERT(i >= 0 && i < fStrings.count());
             return fStrings[i].c_str();
         }
 
         int count() const {
             return fStrings.count();
         }
 
         bool isEmpty() const { return this->count() == 0; }
 
+        /**
+         * Returns true iff string is equal to one of the strings in this array.
+         */
+        bool contains(const char* string) const {
+            for (int i = 0; i < fStrings.count(); i++) {
+                if (fStrings[i].equals(string)) {
+                    return true;
+                }
+            }
+            return false;
+        }
+
     private:
         void reset() { fStrings.reset(); }
 
         void append(const char* string) {
             fStrings.push_back().set(string);
         }
 
         void append(const char* string, size_t length) {
             fStrings.push_back().set(string, length);
         }
@@ skipping 287 matching lines @@
     double*              fDoubleValue;
     double               fDefaultDouble;
     SkCommandLineFlags::StringArray* fStrings;
     // Both for the help string and in case fStrings is empty.
     SkString             fDefaultString;
 
     // In order to keep a linked list.
     SkFlagInfo*          fNext;
 };
 #endif // SK_COMMAND_LINE_FLAGS_H