Replace flag enable-account-consistency with account-consistency.

This CL replaces flag enable-account-consistency with account-consistency
in the places that were omitted by mistake in the previous CL
(http://crrev.com/2916113002).

BUG=2916113002

Review-Url: https://codereview.chromium.org/2917393003
Cr-Commit-Position: refs/heads/master@{#477139}
diff --git a/chrome/browser/about_flags.cc b/chrome/browser/about_flags.cc
index edfe86d..a3f2521 100644
--- a/chrome/browser/about_flags.cc
+++ b/chrome/browser/about_flags.cc
@@ -1684,7 +1684,7 @@
      flag_descriptions::kWebglDraftExtensionsDescription, kOsAll,
      SINGLE_VALUE_TYPE(switches::kEnableWebGLDraftExtensions)},
 #if !defined(OS_ANDROID)
-    {"enable-account-consistency", flag_descriptions::kAccountConsistencyName,
+    {"account-consistency", flag_descriptions::kAccountConsistencyName,
      flag_descriptions::kAccountConsistencyDescription,
      kOsWin | kOsLinux | kOsMac, MULTI_VALUE_TYPE(kAccountConsistencyChoices)},
 #endif