DevTools: retain DTAH in all the targets to match their life time.

chromecast/browser/devtools/cast_devtools_manager_delegate_unittest.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 "chromecast/browser/devtools/cast_devtools_manager_delegate.h"
 
 #include <memory>
 #include <unordered_set>
 
 #include "base/bind.h"
@@ skipping 42 matching lines @@
 
  private:
   DISALLOW_COPY_AND_ASSIGN(CastDevToolsManagerDelegateTest);
 };
 
 TEST_F(CastDevToolsManagerDelegateTest, TestSingletonGetter) {
   EXPECT_EQ(devtools_manager_delegate_.get(),
             CastDevToolsManagerDelegate::GetInstance());
 }
 
-TEST_F(CastDevToolsManagerDelegateTest, NoWebContents) {
-  EXPECT_TRUE(devtools_manager_delegate_->DiscoverTargets(
-      base::Bind(&CastDevToolsManagerDelegateTest::TestDiscoveredTargets,
-                 base::Unretained(this), WebContentsSet())));
-}
-
 TEST_F(CastDevToolsManagerDelegateTest, DisabledWebContents) {
-  EXPECT_TRUE(devtools_manager_delegate_->DiscoverTargets(
-      base::Bind(&CastDevToolsManagerDelegateTest::TestDiscoveredTargets,
-                 base::Unretained(this), WebContentsSet())));
+  TestDiscoveredTargets(WebContentsSet(),
+                        devtools_manager_delegate_->RemoteDebuggingTargets());
 }
 
 TEST_F(CastDevToolsManagerDelegateTest, EnabledWebContents) {
   devtools_manager_delegate_->EnableWebContentsForDebugging(web_contents());
   WebContentsSet enabled_web_contents({web_contents()});
-  EXPECT_TRUE(devtools_manager_delegate_->DiscoverTargets(
-      base::Bind(&CastDevToolsManagerDelegateTest::TestDiscoveredTargets,
-                 base::Unretained(this), enabled_web_contents)));
+  TestDiscoveredTargets(enabled_web_contents,
+                        devtools_manager_delegate_->RemoteDebuggingTargets());
 }
 
 }  // namespace shell
 }  // namespace chromecast