[Prototype] Delete Google service worker caches on Android signout

chrome/browser/android/signin/signin_manager_android.cc

Index: chrome/browser/android/signin/signin_manager_android.cc
diff --git a/chrome/browser/android/signin/signin_manager_android.cc b/chrome/browser/android/signin/signin_manager_android.cc
index 5fd3e001cc51c289baf8c77a7497469d1bb1f1e7..29e9ad8b0b68fbb93db5e06d721ee2bc496fb234 100644
--- a/chrome/browser/android/signin/signin_manager_android.cc
+++ b/chrome/browser/android/signin/signin_manager_android.cc
@@ -19,7 +19,6 @@
 #include "chrome/browser/bookmarks/bookmark_model_factory.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/browsing_data/browsing_data_helper.h"
-
 #include "chrome/browser/browsing_data/chrome_browsing_data_remover_delegate.h"
 #include "chrome/browser/policy/cloud/user_cloud_policy_manager_factory.h"
 #include "chrome/browser/policy/cloud/user_policy_signin_service_factory.h"
@@ -31,6 +30,7 @@
 #include "chrome/browser/signin/signin_manager_factory.h"
 #include "chrome/common/pref_names.h"
 #include "components/bookmarks/browser/bookmark_model.h"
+#include "components/google/core/browser/google_util.h"
 #include "components/policy/core/browser/browser_policy_connector.h"
 #include "components/policy/core/common/cloud/cloud_policy_core.h"
 #include "components/policy/core/common/cloud/cloud_policy_store.h"
@@ -42,6 +42,7 @@
 #include "components/signin/core/browser/signin_metrics.h"
 #include "components/signin/core/common/profile_management_switches.h"
 #include "components/signin/core/common/signin_pref_names.h"
+#include "content/public/browser/browsing_data_filter_builder.h"
 #include "content/public/browser/browsing_data_remover.h"
 #include "google_apis/gaia/gaia_auth_util.h"
 #include "google_apis/gaia/gaia_constants.h"
@@ -53,19 +54,42 @@ using bookmarks::BookmarkModel;
 
 namespace {
 
-// A BrowsingDataRemover::Observer that clears all Profile data and then
-// invokes a callback and deletes itself.
+// A BrowsingDataRemover::Observer that clears Profile data and then invokes
+// a callback and deletes itself. It can be configured to delete all data
+// (for enterprise users) or only Google's service workers (for all users).
 class ProfileDataRemover : public content::BrowsingDataRemover::Observer {
  public:
-  ProfileDataRemover(Profile* profile, const base::Closure& callback)
+  ProfileDataRemover(Profile* profile,
+                     bool all_data,
+                     const base::Closure& callback)
       : callback_(callback),
         origin_runner_(base::ThreadTaskRunnerHandle::Get()),
         remover_(content::BrowserContext::GetBrowsingDataRemover(profile)) {
     remover_->AddObserver(this);
-    remover_->RemoveAndReply(
-        base::Time(), base::Time::Max(),
-        ChromeBrowsingDataRemoverDelegate::ALL_DATA_TYPES,
-        ChromeBrowsingDataRemoverDelegate::ALL_ORIGIN_TYPES, this);
+
+    if (all_data) {
+      remover_->RemoveAndReply(
+          base::Time(), base::Time::Max(),
+          ChromeBrowsingDataRemoverDelegate::ALL_DATA_TYPES,
+          ChromeBrowsingDataRemoverDelegate::ALL_ORIGIN_TYPES, this);
+    } else {
+      std::unique_ptr<content::BrowsingDataFilterBuilder> google_tld_filter =
+          content::BrowsingDataFilterBuilder::Create(
+              content::BrowsingDataFilterBuilder::WHITELIST);
+
+      // TODO(msramek): BrowsingDataFilterBuilder was not designed for
+      // large filters. Optimize it.
+      for (const std::string& domain :
+           google_util::GetGoogleRegistrableDomains()) {
+        google_tld_filter->AddRegisterableDomain(domain);
+      }
+
+      remover_->RemoveWithFilterAndReply(
+          base::Time(), base::Time::Max(),
+          content::BrowsingDataRemover::DATA_TYPE_CACHE_STORAGE,
+          ChromeBrowsingDataRemoverDelegate::ALL_ORIGIN_TYPES,
+          std::move(google_tld_filter), this);
+    }
   }
 
   ~ProfileDataRemover() override {}
@@ -199,10 +223,21 @@ void SigninManagerAndroid::WipeProfileData(
   base::android::ScopedJavaGlobalRef<jobject> java_callback;
   java_callback.Reset(env, callback);
 
-  // The ProfileDataRemover deletes itself once done.
-  new ProfileDataRemover(
-      profile_, base::Bind(&SigninManagerAndroid::OnBrowsingDataRemoverDone,
-                           weak_factory_.GetWeakPtr(), java_callback));
+  WipeData(profile_, true /* all data */,
+           base::Bind(&SigninManagerAndroid::OnBrowsingDataRemoverDone,
+                      weak_factory_.GetWeakPtr(), java_callback));
+}
+
+void SigninManagerAndroid::WipeGoogleServiceWorkerCaches(
+    JNIEnv* env,
+    const JavaParamRef<jobject>& obj,
+    const JavaParamRef<jobject>& callback) {
+  base::android::ScopedJavaGlobalRef<jobject> java_callback;
+  java_callback.Reset(env, callback);
+
+  WipeData(profile_, false /* only Google service worker caches */,
+           base::Bind(&SigninManagerAndroid::OnBrowsingDataRemoverDone,
+                      weak_factory_.GetWeakPtr(), java_callback));
 }
 
 void SigninManagerAndroid::OnPolicyRegisterDone(
@@ -315,6 +350,14 @@ void SigninManagerAndroid::OnSigninAllowedPrefChanged() {
       SigninManagerFactory::GetForProfile(profile_)->IsSigninAllowed());
 }
 
+// static
+void SigninManagerAndroid::WipeData(Profile* profile,
+                                    bool all_data,
+                                    const base::Closure& callback) {
+  // The ProfileDataRemover deletes itself once done.
+  new ProfileDataRemover(profile, all_data, callback);
+}
+
 static jlong Init(JNIEnv* env, const JavaParamRef<jobject>& obj) {
   SigninManagerAndroid* signin_manager_android =
       new SigninManagerAndroid(env, obj);