Use non-primary OTR profile for Incognito CCT TabModel.

|IncognitoTabModelImplCreator#getOTRProfile| function always returns
primary OTR profile. This CL uses OTR profile that is obtained from
mWindowAndroidSupplier for Incognito CCT.

Bug: 1099642
Change-Id: I63ce65ddd6727470921864cb4abc325e8437f04e
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2440626Reviewed-by: Boris Sazonov <bsazonov@chromium.org>
Reviewed-by: Rohit Agarwal <roagarwal@chromium.org>
Commit-Queue: Side YILMAZ <sideyilmaz@chromium.org>
Cr-Commit-Position: refs/heads/master@{#813204}

chrome/android/java/src/org/chromium/chrome/browser/tabmodel/IncognitoTabModelImplCreator.java

@@ -82,6 +82,8 @@ class IncognitoTabModelImplCreator implements IncognitoTabModelDelegate {
             if (otrProfile == null) {
                 return Profile.getLastUsedRegularProfile().getPrimaryOTRProfile();
             }
+
+            return otrProfile;
         }
         return Profile.getLastUsedRegularProfile().getPrimaryOTRProfile();
     }