[Activity Log] when extension is uninstalled, delete data about it

chrome/browser/extensions/activity_log/counting_policy_unittest.cc

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "base/cancelable_callback.h"
 #include "base/command_line.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/run_loop.h"
 #include "base/strings/string_split.h"
 #include "base/strings/stringprintf.h"
@@ skipping 908 matching lines @@
   policy->RemoveURLs(urls);
 
   CheckReadData(
       policy,
       "punky",
       0,
       base::Bind(&CountingPolicyTest::SomeURLsRemoved));
   policy->Close();
 }
 
+TEST_F(CountingPolicyTest, RemoveExtensionData) {
+  CountingPolicy* policy = new CountingPolicy(profile_.get());
+
+  // Use a mock clock to ensure that events are not recorded on the wrong day
+  // when the test is run close to local midnight.
+  base::SimpleTestClock* mock_clock = new base::SimpleTestClock();
+  mock_clock->SetNow(base::Time::Now().LocalMidnight() +
+                     base::TimeDelta::FromHours(12));
+  policy->SetClockForTesting(scoped_ptr<base::Clock>(mock_clock));
+
+  // Record some actions
+  scoped_refptr<Action> action = new Action("deleteextensiondata",
+                                            mock_clock->Now(),
+                                            Action::ACTION_DOM_ACCESS,
+                                            "lets");
+  action->mutable_args()->AppendString("vamoose");
+  action->set_page_title("Google");
+  action->set_arg_url(GURL("http://www.google.com"));
+  policy->ProcessAction(action);
+  policy->ProcessAction(action);
+  policy->ProcessAction(action);
+
+  scoped_refptr<Action> action2 = new Action("dontdelete",
+                                             mock_clock->Now(),
+                                             Action::ACTION_DOM_ACCESS,
+                                             "lets");
+  action->mutable_args()->AppendString("vamoose");
+  action->set_page_title("Google");
+  action->set_arg_url(GURL("http://www.google.com"));
+  policy->ProcessAction(action2);
+
+  policy->Flush();
+  policy->RemoveExtensionData("deleteextensiondata");
+
+  CheckReadFilteredData(
+      policy,
+      "deleteextensiondata",
+      Action::ACTION_ANY,
+      "",
+      "",
+      "",
+      -1,
+      base::Bind(
+          &CountingPolicyTest::RetrieveActions_FetchFilteredActions0));
+
+  CheckReadFilteredData(
+      policy,
+      "dontdelete",
+      Action::ACTION_ANY,
+      "",
+      "",
+      "",
+      -1,
+      base::Bind(
+          &CountingPolicyTest::RetrieveActions_FetchFilteredActions1));
+  policy->Close();
+}
+
 TEST_F(CountingPolicyTest, DeleteActions) {
   CountingPolicy* policy = new CountingPolicy(profile_.get());
   // Disable row expiration for this test by setting a time before any actions
   // we generate.
   policy->set_retention_time(base::TimeDelta::FromDays(14));
 
   // Use a mock clock to ensure that events are not recorded on the wrong day
   // when the test is run close to local midnight.  Note: Ownership is passed
   // to the policy, but we still keep a pointer locally.  The policy will take
   // care of destruction; this is safe since the policy outlives all our
@@ skipping 95 matching lines @@
 
   CheckReadData(
       policy,
       "punky",
       0,
       base::Bind(&CountingPolicyTest::CheckDuplicates));
   policy->Close();
 }
 
 }  // namespace extensions