Experiment to hide close buttons of inactive tabs when using touch

chrome/browser/about_flags.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/about_flags.h"
 
 #include <iterator>
 #include <map>
 #include <set>
 #include <utility>
@@ skipping 246 matching lines @@
   { IDS_GENERIC_EXPERIMENT_CHOICE_DEFAULT, "", "" },
   { IDS_FLAGS_TAB_CAPTURE_SCALE_QUALITY_FAST,
     switches::kTabCaptureDownscaleQuality, "fast" },
   { IDS_FLAGS_TAB_CAPTURE_SCALE_QUALITY_GOOD,
     switches::kTabCaptureDownscaleQuality, "good" },
   { IDS_FLAGS_TAB_CAPTURE_SCALE_QUALITY_BEST,
     switches::kTabCaptureDownscaleQuality, "best" },
 };
 #endif
 
+#if defined(TOOLKIT_VIEWS)
+const Experiment::Choice kTabCloseButtonsHiddenWithTouchChoices[] = {
+  { IDS_GENERIC_EXPERIMENT_CHOICE_DEFAULT, "", "" },
+  { IDS_FLAGS_TAB_CLOSE_BUTTONS_HIDDEN_WITH_TOUCH_ALWAYS,
+    switches::kTabCloseButtonsHiddenWithTouch, "always" },
+  { IDS_FLAGS_TAB_CLOSE_BUTTONS_HIDDEN_WITH_TOUCH_NARROW,
+    switches::kTabCloseButtonsHiddenWithTouch, "narrow" },
+  { IDS_FLAGS_TAB_CLOSE_BUTTONS_HIDDEN_WITH_TOUCH_STACKED,
+    switches::kTabCloseButtonsHiddenWithTouch, "stacked" },
+};
+#endif
+
 #if defined(OS_ANDROID)
 const Experiment::Choice kZeroSuggestExperimentsChoices[] = {
   { IDS_GENERIC_EXPERIMENT_CHOICE_DEFAULT, "", "" },
   { IDS_FLAGS_ZERO_SUGGEST_MOST_VISITED,
     switches::kEnableZeroSuggestMostVisited, ""},
   { IDS_FLAGS_ZERO_SUGGEST_MOST_VISITED_WITHOUT_SERP,
     switches::kEnableZeroSuggestMostVisitedWithoutSerp, ""},
   { IDS_GENERIC_EXPERIMENT_CHOICE_DISABLED,
     switches::kDisableZeroSuggest, ""}
 };
@@ skipping 1096 matching lines @@
     MULTI_VALUE_TYPE(kTabCaptureUpscaleQualityChoices)
   },
   {
     "tab-capture-downscale-quality",
     IDS_FLAGS_TAB_CAPTURE_DOWNSCALE_QUALITY_NAME,
     IDS_FLAGS_TAB_CAPTURE_DOWNSCALE_QUALITY_DESCRIPTION,
     kOsAll,
     MULTI_VALUE_TYPE(kTabCaptureDownscaleQualityChoices)
   },
 #endif
+#if defined(TOOLKIT_VIEWS)
+  {
+    "tab-close-buttons-hidden-with-touch",
+    IDS_FLAGS_TAB_CLOSE_BUTTONS_HIDDEN_WITH_TOUCH_NAME,
+    IDS_FLAGS_TAB_CLOSE_BUTTONS_HIDDEN_WITH_TOUCH_DESCRIPTION,
+    kOsCrOS | kOsWin | kOsLinux,
+    MULTI_VALUE_TYPE(kTabCloseButtonsHiddenWithTouchChoices)
+  },
+#endif
   {
     "enable-webgl-draft-extensions",
     IDS_FLAGS_ENABLE_WEBGL_DRAFT_EXTENSIONS_NAME,
     IDS_FLAGS_ENABLE_WEBGL_DRAFT_EXTENSIONS_DESCRIPTION,
     kOsAll,
     SINGLE_VALUE_TYPE(switches::kEnableWebGLDraftExtensions)
   },
   {
     "enable-web-midi",
     IDS_FLAGS_ENABLE_WEB_MIDI_NAME,
@@ skipping 1353 matching lines @@
 }
 
 const Experiment* GetExperiments(size_t* count) {
   *count = num_experiments;
   return experiments;
 }
 
 }  // namespace testing
 
 }  // namespace about_flags