[Prototype] Delete Google service worker caches on Android signout

chrome/browser/android/signin/signin_manager_android.h

Index: chrome/browser/android/signin/signin_manager_android.h
diff --git a/chrome/browser/android/signin/signin_manager_android.h b/chrome/browser/android/signin/signin_manager_android.h
index 0faee77e8a224ef8d5257655bef9dec8553d0110..e164336eb134cc286fa8084a3912ccb5c7365364 100644
--- a/chrome/browser/android/signin/signin_manager_android.h
+++ b/chrome/browser/android/signin/signin_manager_android.h
@@ -57,10 +57,17 @@ class SigninManagerAndroid : public SigninManagerBase::Observer {
       JNIEnv* env,
       const base::android::JavaParamRef<jobject>& obj);
 
+  // Delete all data for this profile.
   void WipeProfileData(JNIEnv* env,
                        const base::android::JavaParamRef<jobject>& obj,
                        const base::android::JavaParamRef<jobject>& hooks);
 
+  // Delete service worker caches for google.<eTLD>.
+  void WipeGoogleServiceWorkerCaches(
+      JNIEnv* env,
+      const base::android::JavaParamRef<jobject>& obj,
+      const base::android::JavaParamRef<jobject>& hooks);
+
   void LogInSignedInUser(JNIEnv* env,
                          const base::android::JavaParamRef<jobject>& obj);
 
@@ -90,6 +97,9 @@ class SigninManagerAndroid : public SigninManagerBase::Observer {
                        const std::string& username) override;
 
  private:
+  FRIEND_TEST_ALL_PREFIXES(SigninManagerAndroidTest,
+                           DeleteGoogleServiceWorkerCaches);
+
   ~SigninManagerAndroid() override;
 
   void OnPolicyRegisterDone(const std::string& dm_token,
@@ -103,6 +113,10 @@ class SigninManagerAndroid : public SigninManagerBase::Observer {
 
   void OnSigninAllowedPrefChanged();
 
+  static void WipeData(Profile* profile,
+                       bool all_data,
+                       const base::Closure& callback);
+
   Profile* profile_;
 
   // Java-side SigninManager object.