Restrict getInstalledRelatedApps() to non-incognito contexts.

content/public/android/java/src/org/chromium/content/browser/installedapp/InstalledAppProviderFactory.java

Index: content/public/android/java/src/org/chromium/content/browser/installedapp/InstalledAppProviderFactory.java
diff --git a/content/public/android/java/src/org/chromium/content/browser/installedapp/InstalledAppProviderFactory.java b/content/public/android/java/src/org/chromium/content/browser/installedapp/InstalledAppProviderFactory.java
index 82bf8be2a8d6c3bd4dea4761cf4a2d89649379d3..26dfb0c21b8bb409e6b8a71b9e38e875f8a6fe86 100644
--- a/content/public/android/java/src/org/chromium/content/browser/installedapp/InstalledAppProviderFactory.java
+++ b/content/public/android/java/src/org/chromium/content/browser/installedapp/InstalledAppProviderFactory.java
@@ -35,6 +35,11 @@ public class InstalledAppProviderFactory implements InterfaceFactory<InstalledAp
                 throw new AssertionError(e);
             }
         }
+
+        @Override
+        public boolean isIncognito() {
+            return mRenderFrameHost.isIncognito();
+        }
     }
 
     public InstalledAppProviderFactory(RenderFrameHost renderFrameHost) {