Use Finch flag instead of command line for Expect CT reporting

chrome/common/chrome_switches.h

 // 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.
 
 // Defines the shared command-line switches used by code in the Chrome
 // directory that don't have anywhere more specific to go.
 
 #ifndef CHROME_COMMON_CHROME_SWITCHES_H_
 #define CHROME_COMMON_CHROME_SWITCHES_H_
 
@@ skipping 99 matching lines @@
 extern const char kEnableAppsFileAssociations[];
 extern const char kEnableAudioDebugRecordingsFromExtension[];
 extern const char kEnableBenchmarking[];
 extern const char kEnableBookmarkUndo[];
 extern const char kEnableChildAccountDetection[];
 extern const char kEnableClearBrowsingDataCounters[];
 extern const char kEnableCloudPrintProxy[];
 extern const char kEnableDevToolsExperiments[];
 extern const char kEnableDeviceDiscoveryNotifications[];
 extern const char kEnableDomainReliability[];
-extern const char kEnableExpectCTReporting[];
 extern const char kEnableExperimentalHotwordHardware[];
 extern const char kEnableExtensionActivityLogging[];
 extern const char kEnableExtensionActivityLogTesting[];
 extern const char kEnableFastUnload[];
 #if defined(GOOGLE_CHROME_BUILD)
 extern const char kEnableGoogleBrandedContextMenu[];
 #endif  // defined(GOOGLE_CHROME_BUILD)
 extern const char kEnableMaterialDesignExtensions[];
 extern const char kEnableMaterialDesignPolicyPage[];
 extern const char kEnableNaCl[];
@@ skipping 278 matching lines @@
 #if defined(ENABLE_TASK_MANAGER)
 bool NewTaskManagerEnabled();
 #endif  // defined(ENABLE_TASK_MANAGER)
 
 // DON'T ADD RANDOM STUFF HERE. Put it in the main section above in
 // alphabetical order, or in one of the ifdefs (also in order in each section).
 
 }  // namespace switches
 
 #endif  // CHROME_COMMON_CHROME_SWITCHES_H_