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chrome/android/java/src/org/chromium/chrome/browser/webapps/ChromeWebApkHost.java

Index: chrome/android/java/src/org/chromium/chrome/browser/webapps/ChromeWebApkHost.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/webapps/ChromeWebApkHost.java b/chrome/android/java/src/org/chromium/chrome/browser/webapps/ChromeWebApkHost.java
index b73fc416d8e6d1a06968dc2a2f29075eb7b6b524..7e374340ffd60040ffd22c6f4b8972b808f4fe95 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/webapps/ChromeWebApkHost.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/webapps/ChromeWebApkHost.java
@@ -11,10 +11,12 @@ import android.os.StrictMode;
 import android.provider.Settings;
 import android.support.v7.app.AlertDialog;
 
+import org.chromium.base.Callback;
 import org.chromium.base.ContextUtils;
 import org.chromium.base.Log;
 import org.chromium.base.annotations.CalledByNative;
 import org.chromium.chrome.R;
+import org.chromium.chrome.browser.ChromeApplication;
 import org.chromium.chrome.browser.ChromeFeatureList;
 import org.chromium.chrome.browser.ChromeVersionInfo;
 import org.chromium.chrome.browser.preferences.ChromePreferenceManager;
@@ -64,6 +66,27 @@ public class ChromeWebApkHost {
     }
 
     /**
+     * Checks whether the Google Play Install API is available.
+     */
+    @CalledByNative
+    private static void canUseGooglePlayInstallApi(final long callbackPointer) {
+        ChromeApplication application = (ChromeApplication) ContextUtils.getApplicationContext();
+        GooglePlayWebApkInstallDelegate delegate = application.getGooglePlayWebApkInstallDelegate();
+        if (delegate == null) {
+            nativeOnCanUseGooglePlayInstallApi(callbackPointer, false);
+            return;
+        }
+
+        Callback<Boolean> callback = new Callback<Boolean>() {
+            @Override
+            public void onResult(Boolean result) {
+                nativeOnCanUseGooglePlayInstallApi(callbackPointer, result);
+            }
+        };
+        delegate.canUseInstallApi(callback);
+    }
+
+    /**
      * Check the cached value to figure out if the feature is enabled. We have to use the cached
      * value because native library may not yet been loaded.
      * @return Whether the feature is enabled.
@@ -155,4 +178,6 @@ public class ChromeWebApkHost {
     }
 
     private static native boolean nativeCanUseGooglePlayToInstallWebApk();
+    private static native void nativeOnCanUseGooglePlayInstallApi(long callbackPointer,
+            boolean success);
 }