[Extensions] Remove API permission for deleted cast.streaming API

This API was removed in
https://chromium-review.googlesource.com/c/chromium/src/+/2225821. The
continued presence of this permissions check for the deleted API causes
a crash in debug builds. This CL removes the check, adjusts associated
unittests, and deprecates the permission.

Bug: 986981
Change-Id: I1b9a6596d8dd0af5a80f0fd2348b11569273cbaf
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2428923Reviewed-by: mark a. foltz <mfoltz@chromium.org>
Reviewed-by: Karan Bhatia <karandeepb@chromium.org>
Commit-Queue: Colin Blundell <blundell@chromium.org>
Cr-Commit-Position: refs/heads/master@{#810515}

chrome/common/extensions/permissions/chrome_api_permissions.cc

@@ -223,7 +223,6 @@ constexpr APIPermissionInfo::InitInfo permissions_to_register[] = {
     // Platform-app permissions.
     {APIPermission::kFileSystemProvider, "fileSystemProvider",
      APIPermissionInfo::kFlagDoesNotRequireManagedSessionFullLoginWarning},
-    {APIPermission::kCastStreaming, "cast.streaming"},
     {APIPermission::kLauncherSearchProvider, "launcherSearchProvider"},
 
     // Settings override permissions.

chrome/common/extensions/permissions/permission_set_unittest.cc

@@ -749,7 +749,6 @@ TEST(PermissionsTest, PermissionMessages) {
   skip.insert(APIPermission::kAppView);
   skip.insert(APIPermission::kAudio);
   skip.insert(APIPermission::kBrowsingData);
-  skip.insert(APIPermission::kCastStreaming);
   skip.insert(APIPermission::kCommandsAccessibility);
   skip.insert(APIPermission::kContextMenus);
   skip.insert(APIPermission::kCryptotokenPrivate);
@@ -823,7 +822,6 @@ TEST(PermissionsTest, PermissionMessages) {
   skip.insert(APIPermission::kBookmarkManagerPrivate);
   skip.insert(APIPermission::kBrailleDisplayPrivate);
   skip.insert(APIPermission::kCast);
-  skip.insert(APIPermission::kCastStreaming);
   skip.insert(APIPermission::kCecPrivate);
   skip.insert(APIPermission::kChromeosInfoPrivate);
   skip.insert(APIPermission::kCloudPrintPrivate);

extensions/common/permissions/api_permission.h

@@ -66,7 +66,7 @@ class APIPermission {
     kBrowser = 22,
     kBrowsingData = 23,
     kCast = 24,
-    kCastStreaming = 25,
+    kDeleted_kCastStreaming = 25,
     kChromeosInfoPrivate = 26,
     kClipboardRead = 27,
     kClipboardWrite = 28,