WebInstall: Add cpp method to get installed apps on Android.

Change-Id: I61bd62d14c82c388915f712d7309f0b4f99bc715
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2238855
Commit-Queue: Jarryd Goodman <jarrydg@chromium.org>
Reviewed-by: Dominick Ng <dominickn@chromium.org>
Cr-Commit-Position: refs/heads/master@{#777472}

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

@@ -59,6 +59,7 @@ import org.chromium.webapk.lib.client.WebApkValidator;
 import java.io.ByteArrayOutputStream;
 import java.util.List;
 import java.util.Locale;
+import java.util.Set;
 
 /**
  * This class contains functions related to adding shortcuts to the Android Home
@@ -602,6 +603,13 @@ public class ShortcutHelper {
                 origin.toLowerCase(Locale.getDefault()));
     }
 
+    @CalledByNative
+    static String[] getOriginsWithInstalledWebApksOrTwas() {
+        Set<String> originSet = WebappRegistry.getInstance().getOriginsWithInstalledApp();
+        String[] output = new String[originSet.size()];
+        return originSet.toArray(output);
+    }
+
     /**
      * Compresses a bitmap into a PNG and converts into a Base64 encoded string.
      * The encoded string can be decoded using {@link decodeBitmapFromString(String)}.

chrome/browser/android/shortcut_helper.cc

@@ -353,6 +353,23 @@ bool ShortcutHelper::DoesOriginContainAnyInstalledTrustedWebActivity(
   return Java_ShortcutHelper_doesOriginContainAnyInstalledTwa(env, java_origin);
 }
 
+std::set<GURL> ShortcutHelper::GetOriginsWithInstalledWebApksOrTwas() {
+  std::set<GURL> installed_origins;
+  JNIEnv* env = base::android::AttachCurrentThread();
+
+  base::android::ScopedJavaLocalRef<jobjectArray> j_installed_origins =
+      Java_ShortcutHelper_getOriginsWithInstalledWebApksOrTwas(env);
+
+  if (j_installed_origins) {
+    std::vector<std::string> installed_origins_list;
+    base::android::AppendJavaStringArrayToStringVector(env, j_installed_origins,
+                                                       &installed_origins_list);
+    for (auto& origin : installed_origins_list)
+      installed_origins.emplace(GURL(origin));
+  }
+  return installed_origins;
+}
+
 void ShortcutHelper::SetForceWebApkUpdate(const std::string& id) {
   JNIEnv* env = base::android::AttachCurrentThread();
   Java_ShortcutHelper_setForceWebApkUpdate(

chrome/browser/android/shortcut_helper.h

@@ -6,6 +6,7 @@
 #define CHROME_BROWSER_ANDROID_SHORTCUT_HELPER_H_
 
 #include <memory>
+#include <set>
 #include <string>
 #include <vector>
 
@@ -106,6 +107,9 @@ class ShortcutHelper {
   static bool DoesOriginContainAnyInstalledTrustedWebActivity(
       const GURL& origin);
 
+  // Returns a set of origins that have an installed WebAPK or TWA.
+  static std::set<GURL> GetOriginsWithInstalledWebApksOrTwas();
+
   // Sets a flag to force an update for the WebAPK corresponding to |id| on next
   // launch.
   static void SetForceWebApkUpdate(const std::string& id);