[Reland] Cros splitscreen: Disable the splitscreen for M65 stable but keep it enabled for all other channels.

This CL will be reverted after M65 is cut.

[email protected]

Bug: 800501
Change-Id: I35d388efcb6fc4e2ee6d1e51842e1f2bed823c12
Reviewed-on: https://chromium-review.googlesource.com/869196
Commit-Queue: Xiaoqian Dai <[email protected]>
Reviewed-by: Mitsuru Oshima <[email protected]>
Cr-Original-Commit-Position: refs/heads/master@{#529845}
Reviewed-on: https://chromium-review.googlesource.com/871504
Reviewed-by: Xiaoqian Dai <[email protected]>
Cr-Commit-Position: refs/heads/master@{#529924}
diff --git a/chrome/browser/flag_descriptions.cc b/chrome/browser/flag_descriptions.cc
index 64b6d52b..ab5b33e 100644
--- a/chrome/browser/flag_descriptions.cc
+++ b/chrome/browser/flag_descriptions.cc
@@ -2495,10 +2495,6 @@
     "Disable tablet mode autohide titlebars functionality. The user will be "
     "able to see the titlebar in tablet mode.";
 
-const char kDisableTabletSplitViewName[] = "Disable split view in Tablet mode";
-const char kDisableTabletSplitViewDescription[] =
-    "Disable split view for Chrome OS tablet mode.";
-
 const char kEnablePerUserTimezoneName[] = "Per-user time zone preferences.";
 const char kEnablePerUserTimezoneDescription[] =
     "Chrome OS system timezone preference is stored and handled for each user "
@@ -2542,6 +2538,10 @@
 const char kEnableImeMenuDescription[] =
     "Enable access to the new IME menu in the Language Settings page.";
 
+const char kEnableTabletSplitViewName[] = "Split view in Tablet mode";
+const char kEnableTabletSplitViewDescription[] =
+    "Enable split view for Chrome OS tablet mode.";
+
 const char kEnableZipArchiverPackerName[] = "ZIP archiver - Packer";
 const char kEnableZipArchiverPackerDescription[] =
     "Enable the ability to archive files on Drive in the Files app";