[WebView] initial webview-side implementation of safebrowsing

android_webview/java/src/org/chromium/android_webview/AwBrowserContext.java

Index: android_webview/java/src/org/chromium/android_webview/AwBrowserContext.java
diff --git a/android_webview/java/src/org/chromium/android_webview/AwBrowserContext.java b/android_webview/java/src/org/chromium/android_webview/AwBrowserContext.java
index 52869fbed940a2565a033312521b613ecc8a1f1d..4d711d3f677ed486e09b88627c06d6b688804dad 100644
--- a/android_webview/java/src/org/chromium/android_webview/AwBrowserContext.java
+++ b/android_webview/java/src/org/chromium/android_webview/AwBrowserContext.java
@@ -7,6 +7,10 @@ package org.chromium.android_webview;
 import android.content.Context;
 import android.content.SharedPreferences;
 
+import org.chromium.base.CommandLine;
+import org.chromium.base.Log;
+import org.chromium.components.safe_browsing.SafeBrowsingApiBridge;
+import org.chromium.components.safe_browsing.SafeBrowsingApiHandler;
 import org.chromium.content.browser.AppWebMessagePortService;
 import org.chromium.content.browser.ContentViewStatics;
 
@@ -19,6 +23,7 @@ import org.chromium.content.browser.ContentViewStatics;
  * AwBrowserContext instance, so at this point the class mostly exists for conceptual clarity.
  */
 public class AwBrowserContext {
+    private static final String TAG = "AwBrowserContext";
     private final SharedPreferences mSharedPreferences;
 
     private AwGeolocationPermissions mGeolocationPermissions;
@@ -30,6 +35,10 @@ public class AwBrowserContext {
     public AwBrowserContext(SharedPreferences sharedPreferences, Context applicationContext) {
         mSharedPreferences = sharedPreferences;
         mApplicationContext = applicationContext;
+
+        if (CommandLine.getInstance().hasSwitch(AwSwitches.WEBVIEW_ENABLE_SAFEBROWSING_SUPPORT)) {
+            initSafeBrowsingApiHandler();
+        }
     }
 
     public AwGeolocationPermissions getGeolocationPermissions() {
@@ -73,4 +82,20 @@ public class AwBrowserContext {
     public void resumeTimers() {
         ContentViewStatics.setWebKitSharedTimersSuspended(false);
     }
+
+    @SuppressWarnings("unchecked")
+    private void initSafeBrowsingApiHandler() {
+        final String safeBrowsingApiHandler =
+                "com.android.webview.chromium.AwSafeBrowsingApiHandler";
+
+        // Try to get a specialized service bridge.
+        try {
+            Class<? extends SafeBrowsingApiHandler> cls =
+                    (Class<? extends SafeBrowsingApiHandler>) Class.forName(safeBrowsingApiHandler);
+            SafeBrowsingApiBridge.setSafeBrowingHandlerType(cls);
+        } catch (ClassNotFoundException e) {
+            Log.w(TAG, "Could not find SafeBrowsingApiHandler");

[sgurun-gerrit only, 2017/01/16 15:11:19]

no need to log here as we are already logging for the resourcethrottle creating
failure in AwResourceDispatcherHostDelegate which means the device is AOSP.
remove.

[timvolodine, 2017/01/16 18:58:57]

Done.

+            // This is not an error; it just means this device doesn't have specialized services.
+        }
+    }
 }