Remove Tabpose feature on mac, and supporting infrastructure (PaintAtSize)

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 <algorithm>
 #include <iterator>
 #include <map>
 #include <set>
@@ skipping 409 matching lines @@
 //   macro for this type supplying the command line to the macro.
 // . MULTI_VALUE: a list of choices, the first of which should correspond to a
 //   deactivated state for this lab (i.e. no command line option).  To specify
 //   this type of experiment use the macro MULTI_VALUE_TYPE supplying it the
 //   array of choices.
 // See the documentation of Experiment for details on the fields.
 //
 // When adding a new choice, add it to the end of the list.
 const Experiment kExperiments[] = {
   {
-    "expose-for-tabs",  // FLAGS:RECORD_UMA
-    IDS_FLAGS_TABPOSE_NAME,
-    IDS_FLAGS_TABPOSE_DESCRIPTION,
-    kOsMac,
-#if defined(OS_MACOSX)
-    // The switch exists only on OS X.
-    SINGLE_VALUE_TYPE(switches::kEnableExposeForTabs)
-#else
-    SINGLE_VALUE_TYPE("")
-#endif
-  },
-  {
     "conflicting-modules-check",  // FLAGS:RECORD_UMA
     IDS_FLAGS_CONFLICTS_CHECK_NAME,
     IDS_FLAGS_CONFLICTS_CHECK_DESCRIPTION,
     kOsWin,
     SINGLE_VALUE_TYPE(switches::kConflictingModulesCheck)
   },
   {
     "ignore-gpu-blacklist",
     IDS_FLAGS_IGNORE_GPU_BLACKLIST_NAME,
     IDS_FLAGS_IGNORE_GPU_BLACKLIST_DESCRIPTION,
@@ skipping 2061 matching lines @@
 }
 
 const Experiment* GetExperiments(size_t* count) {
   *count = num_experiments;
   return experiments;
 }
 
 }  // namespace testing
 
 }  // namespace about_flags