Refactor connection_security into SecurityStateModel

chrome/android/java/src/org/chromium/chrome/browser/ssl/SecurityStateModel.java

+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+package org.chromium.chrome.browser.ssl;
+
+import org.chromium.content_public.browser.WebContents;
+
+/**
+ * Provides a way of accessing helpers for page security state.
+ */
+public class SecurityStateModel {
+    /**
+     * Fetch the security level for a given web contents.
+     *
+     * @param webContents The web contents to get the security level for.
+     * @return The ConnectionSecurityLevel for the specified web contents.
+     *
+     * @see ConnectionSecurityLevel
+     */
+    public static int getSecurityLevelForWebContents(WebContents webContents) {
+        if (webContents == null) return ConnectionSecurityLevel.NONE;
+        return nativeGetSecurityLevelForWebContents(webContents);
+    }
+
+    /**
+     * @param webContents The web contents to query for deprecated SHA-1 presence.
+     * @return Whether the security level of the page was deprecated due to SHA-1.
+     */
+    public static boolean isDeprecatedSHA1Present(WebContents webContents) {
+        if (webContents == null) return false;
+        return nativeIsDeprecatedSHA1Present(webContents);
+    }
+
+    /**
+     * @param webContents The web contents to query for passive mixed content presence.
+     * @return Whether the page contains passive mixed content.
+     */
+    public static boolean isPassiveMixedContentPresent(WebContents webContents) {
+        if (webContents == null) return false;
+        return nativeIsPassiveMixedContentPresent(webContents);
+    }
+
+    private SecurityStateModel() {}
+
+    private static native int nativeGetSecurityLevelForWebContents(WebContents webContents);
+    private static native boolean nativeIsDeprecatedSHA1Present(WebContents webContents);
+    private static native boolean nativeIsPassiveMixedContentPresent(WebContents webContents);
+}