Make AppBannerInfoBar install WebAPK.

chrome/browser/android/webapk/webapk_installer_unittest.cc

Index: chrome/browser/android/webapk/webapk_installer_unittest.cc
diff --git a/chrome/browser/android/webapk/webapk_installer_unittest.cc b/chrome/browser/android/webapk/webapk_installer_unittest.cc
index 0231684ca8845d6a97fb13a4a08752c5073b55ca..9c4891732717410134474d67c4e1011292032374 100644
--- a/chrome/browser/android/webapk/webapk_installer_unittest.cc
+++ b/chrome/browser/android/webapk/webapk_installer_unittest.cc
@@ -66,6 +66,7 @@ class TestWebApkInstaller : public WebApkInstaller {
       JNIEnv* env,
       const base::android::ScopedJavaLocalRef<jstring>& file_path,
       const base::android::ScopedJavaLocalRef<jstring>& package_name) override {
+    PostTaskToRunSuccessCallback();
     return true;
   }
 
@@ -73,9 +74,16 @@ class TestWebApkInstaller : public WebApkInstaller {
       JNIEnv* env,
       const base::android::ScopedJavaLocalRef<jstring>& file_path,
       const base::android::ScopedJavaLocalRef<jstring>& package_name) override {
+    PostTaskToRunSuccessCallback();
     return true;
   }
 
+  void PostTaskToRunSuccessCallback() {
+    base::ThreadTaskRunnerHandle::Get()->PostTask(
+        FROM_HERE,
+        base::Bind(&TestWebApkInstaller::OnSuccess, base::Unretained(this)));
+  }
+
  private:
   DISALLOW_COPY_AND_ASSIGN(TestWebApkInstaller);
 };
@@ -134,7 +142,7 @@ class WebApkInstallerRunner {
   bool success() { return success_; }
 
  private:
-  void OnCompleted(bool success) {
+  void OnCompleted(bool success, const std::string& webapk_package) {
     success_ = success;
     on_completed_callback_.Run();
   }