Move SecurityLevel into a class of its own

chrome/android/java/src/org/chromium/chrome/browser/Tab.java

Index: chrome/android/java/src/org/chromium/chrome/browser/Tab.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/Tab.java b/chrome/android/java/src/org/chromium/chrome/browser/Tab.java
index b14300afd554149eb31146ce7d7c9ad5c8442ef5..42f6dee998d175bdc9806f000691edbb9b48a2f4 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/Tab.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/Tab.java
@@ -42,13 +42,13 @@ import org.chromium.chrome.browser.metrics.UmaSessionStats;
 import org.chromium.chrome.browser.metrics.UmaUtils;
 import org.chromium.chrome.browser.printing.TabPrinter;
 import org.chromium.chrome.browser.profiles.Profile;
+import org.chromium.chrome.browser.ssl.SecurityLevelPolicySecurityLevel;
 import org.chromium.chrome.browser.tab.SadTabViewFactory;
 import org.chromium.chrome.browser.tabmodel.TabModel.TabLaunchType;
 import org.chromium.chrome.browser.tabmodel.TabModel.TabSelectionType;
 import org.chromium.chrome.browser.tabmodel.TabModelBase;
 import org.chromium.chrome.browser.tabmodel.TabModelSelector;
 import org.chromium.chrome.browser.toolbar.ToolbarModel;
-import org.chromium.chrome.browser.ui.toolbar.ToolbarModelSecurityLevel;
 import org.chromium.components.navigation_interception.InterceptNavigationDelegate;
 import org.chromium.content.browser.ContentView;
 import org.chromium.content.browser.ContentViewClient;
@@ -1138,7 +1138,7 @@ public class Tab implements ViewGroup.OnHierarchyChangeListener,
     }
 
     /**
-     * @return The current {ToolbarModelSecurityLevel} for the tab.
+     * @return The current {SecurityLevelPolicySecurityLevel} for the tab.
      */
     // TODO(tedchoc): Remove this and transition all clients to use ToolbarModel directly.
     public int getSecurityLevel() {
@@ -2438,8 +2438,8 @@ public class Tab implements ViewGroup.OnHierarchyChangeListener,
                 && !url.startsWith(UrlConstants.CHROME_NATIVE_SCHEME);
 
         int securityState = getSecurityLevel();
-        enableHidingTopControls &= (securityState != ToolbarModelSecurityLevel.SECURITY_ERROR
-                && securityState != ToolbarModelSecurityLevel.SECURITY_WARNING);
+        enableHidingTopControls &= (securityState != SecurityLevelPolicySecurityLevel.SECURITY_ERROR
+                && securityState != SecurityLevelPolicySecurityLevel.SECURITY_WARNING);
 
         enableHidingTopControls &=
                 !AccessibilityUtil.isAccessibilityEnabled(getApplicationContext());