Support uninstalling ARC app from Chrome launcher

chrome/browser/ui/app_list/arc/arc_app_test.cc

 // Copyright 2016 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 "chrome/browser/ui/app_list/arc/arc_app_test.h"
 
 #include "base/strings/stringprintf.h"
 #include "chrome/browser/ui/app_list/arc/arc_app_list_prefs.h"
 #include "components/arc/arc_bridge_service.h"
 #include "components/arc/common/app.mojom.h"
 #include "components/arc/test/fake_app_instance.h"
 #include "components/arc/test/fake_arc_bridge_service.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 // static
 std::string ArcAppTest::GetAppId(const arc::AppInfo& app_info) {
   return ArcAppListPrefs::GetAppId(app_info.package_name, app_info.activity);
 }
 
 ArcAppTest::ArcAppTest() {
 }
 
 ArcAppTest::~ArcAppTest() {
 }
 
 void ArcAppTest::SetUp(content::BrowserContext* browser_context) {
   DCHECK(!browser_context_);
   browser_context_ = browser_context;
 
+  arc::AppInfo store_app;

[khmel, 2016/03/07 21:11:52]

nit: Can we do it more gracefully? For example  get first app and make it
sticky?

[victorhsieh0, 2016/03/07 23:54:43]

Done.  We don't need that package_name.

+  store_app.name = "Store";
+  store_app.package_name = "com.android.vending";
+  store_app.activity = "com.android.vending.activity";
+  store_app.sticky = true;
+  fake_apps_.push_back(store_app);
+
   // Make sure we have enough data for test.
   for (int i = 0; i < 3; ++i) {
     arc::AppInfo app;
     app.name = base::StringPrintf("Fake App %d", i);
     app.package_name = base::StringPrintf("fake.app.%d", i);
     app.activity = base::StringPrintf("fake.app.%d.activity", i);
+    app.sticky = false;
     fake_apps_.push_back(app);
   }
 
   bridge_service_.reset(new arc::FakeArcBridgeService());
   app_instance_.reset(
       new arc::FakeAppInstance(ArcAppListPrefs::Get(browser_context_)));
   arc::AppInstancePtr instance;
   app_instance_->Bind(mojo::GetProxy(&instance));
   bridge_service_->OnAppInstanceReady(std::move(instance));
   app_instance_->WaitForOnAppInstanceReady();
 
   // Check initial conditions.
   EXPECT_EQ(bridge_service_.get(), arc::ArcBridgeService::Get());
   EXPECT_TRUE(!arc::ArcBridgeService::Get()->available());
   EXPECT_EQ(arc::ArcBridgeService::State::STOPPED,
             arc::ArcBridgeService::Get()->state());
 
   // At this point we should have ArcAppListPrefs as observer of service.
   EXPECT_TRUE(bridge_service_->HasObserver(ArcAppListPrefs::Get(
       browser_context_)));
 }