[Android:WebAPK] Don't add webapp to homescreen if WebAPK install times out part 1/3

chrome/browser/android/webapk/webapk_installer.h

Index: chrome/browser/android/webapk/webapk_installer.h
diff --git a/chrome/browser/android/webapk/webapk_installer.h b/chrome/browser/android/webapk/webapk_installer.h
index d47d75228d539b788b2933098541c2cca742e5b2..b3c44b70703d86655dedc2747c2bcadf769621d4 100644
--- a/chrome/browser/android/webapk/webapk_installer.h
+++ b/chrome/browser/android/webapk/webapk_installer.h
@@ -32,6 +32,7 @@ namespace webapk {
 class WebApk;
 }
 
+enum class WebApkInstallResult;
 class WebApkIconHasher;
 
 // Talks to Chrome WebAPK server and Google Play to generate a WebAPK on the
@@ -41,9 +42,10 @@ class WebApkInstaller : public net::URLFetcherDelegate {
  public:
   // Called when the creation/updating of a WebAPK is finished or failed.
   // Parameters:
-  // - whether the process succeeds.
+  // - the result of the installation.
   // - the package name of the WebAPK.
-  using FinishCallback = base::Callback<void(bool, const std::string&)>;
+  using FinishCallback =
+      base::Callback<void(WebApkInstallResult, const std::string&)>;
 
   ~WebApkInstaller() override;
 
@@ -91,7 +93,7 @@ class WebApkInstaller : public net::URLFetcherDelegate {
   // Called once the installation is complete or failed.
   void OnInstallFinished(JNIEnv* env,
                          const base::android::JavaParamRef<jobject>& obj,
-                         jboolean success);
+                         jint result);
 
   // Creates a WebApk install or update request.
   // Should be used only for testing.
@@ -137,7 +139,7 @@ class WebApkInstaller : public net::URLFetcherDelegate {
       int version,
       const std::string& token);
 
-  // Called when the request to install the WebAPK is sent to Google Play.
+  // Called when the install or update process has completed.
   void OnSuccess();
 
  private:
@@ -227,12 +229,12 @@ class WebApkInstaller : public net::URLFetcherDelegate {
   // download times out.
   void OnTimeout();
 
-  // Called if a WebAPK could not be created. WebApkInstaller only tracks the
-  // WebAPK creation and the WebAPK download. It does not track the
-  // WebAPK installation. OnFailure() is not called if the WebAPK could not be
-  // installed.
+  // Called if the WebAPK could not be installed or updated.
   void OnFailure();
 
+  // Called when the install or update process has completed or failed.
+  void OnResult(WebApkInstallResult result);
+
   net::URLRequestContextGetter* request_context_getter_;
 
   // Sends HTTP request to WebAPK server.