Replace deprecated getLastUsedProfile function in LocationBarModel.

|Profile#getLastUsedProfile| is deprecated and replaced with
|Profile#getLastUsedRegularProfile|. This CL updates LocationBarModel
class.

Note: This change is only code clean-up, does not change any behavior.

Bug: 1041781
Change-Id: Id9a6647395aac65bafd543529215fa827e5b1869
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2067070Reviewed-by: Yusuf Ozuysal <yusufo@chromium.org>
Commit-Queue: Side YILMAZ <sideyilmaz@chromium.org>
Cr-Commit-Position: refs/heads/master@{#746004}

chrome/android/java/src/org/chromium/chrome/browser/toolbar/LocationBarModel.java

@@ -289,15 +289,16 @@ public class LocationBarModel implements ToolbarDataProvider, ToolbarCommonPrope
 
     @Override
     public Profile getProfile() {
-        Profile lastUsedProfile = Profile.getLastUsedProfile();
+        Profile lastUsedRegularProfile = Profile.getLastUsedRegularProfile();
         if (mIsIncognito) {
             // When in overview mode with no open tabs, there has not been created an
             // OffTheRecordProfile yet. #getOffTheRecordProfile will create a profile if none
             // exists.
-            assert lastUsedProfile.hasOffTheRecordProfile() || isInOverviewAndShowingOmnibox();
-            return lastUsedProfile.getOffTheRecordProfile();
+            assert lastUsedRegularProfile.hasOffTheRecordProfile()
+                    || isInOverviewAndShowingOmnibox();
+            return lastUsedRegularProfile.getOffTheRecordProfile();
         }
-        return lastUsedProfile.getOriginalProfile();
+        return lastUsedRegularProfile;
     }
 
     public void setOverviewModeBehavior(OverviewModeBehavior overviewModeBehavior) {