Respect --match for samples and jpgs in viewer

tools/viewer/Viewer.cpp

 /*
 * 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 "Viewer.h"
 
 #include "GMSlide.h"
@@ skipping 200 matching lines @@
     for (int i = 0; i < fSlides.count()/2; ++i) {
         sk_sp<Slide> temp = fSlides[i];
         fSlides[i] = fSlides[fSlides.count() - i - 1];
         fSlides[fSlides.count() - i - 1] = temp;
     }
 
     // samples
     const SkViewRegister* reg = SkViewRegister::Head();
     while (reg) {
         sk_sp<Slide> slide(new SampleSlide(reg->factory()));
-        fSlides.push_back(slide);
+        if (!SkCommandLineFlags::ShouldSkip(FLAGS_match, slide->getName().c_str())) {
+            fSlides.push_back(slide);
+        }
         reg = reg->next();
     }
 
     // SKPs
     for (int i = 0; i < FLAGS_skps.count(); i++) {
         if (SkStrEndsWith(FLAGS_skps[i], ".skp")) {
             if (SkCommandLineFlags::ShouldSkip(FLAGS_match, FLAGS_skps[i])) {
                 continue;
             }
 
@@ skipping 17 matching lines @@
                 }
             }
         }
     }
 
     // JPGs
     for (int i = 0; i < FLAGS_jpgs.count(); i++) {
         SkOSFile::Iter it(FLAGS_jpgs[i], ".jpg");
         SkString jpgName;
         while (it.next(&jpgName)) {
+            if (SkCommandLineFlags::ShouldSkip(FLAGS_match, jpgName.c_str())) {
+                continue;
+            }
+
             SkString path = SkOSPath::Join(FLAGS_jpgs[i], jpgName.c_str());
             sk_sp<ImageSlide> slide(new ImageSlide(jpgName, path));
             if (slide) {
                 fSlides.push_back(slide);
             }
         }
     }
 }
 
 
@@ skipping 333 matching lines @@
             updateUIState();
         }
     } else if (stateName.equals(kRefreshStateName)) {
         // This state is actually NOT in the UI state.
         // We use this to allow Android to quickly set bool fRefresh.
         fRefresh = stateValue.equals(kON);
     } else {
         SkDebugf("Unknown stateName: %s", stateName.c_str());
     }
 }