expect the test finishes

chrome/browser/extensions/requirements_checker_browsertest.cc

Index: chrome/browser/extensions/requirements_checker_browsertest.cc
diff --git a/chrome/browser/extensions/requirements_checker_browsertest.cc b/chrome/browser/extensions/requirements_checker_browsertest.cc
index e7665ba37bc56e7b6da530e7d3814e89465309d2..7da5900de2fe7154039cc0557d8035191e6420be 100644
--- a/chrome/browser/extensions/requirements_checker_browsertest.cc
+++ b/chrome/browser/extensions/requirements_checker_browsertest.cc
@@ -47,6 +47,7 @@ class RequirementsCheckerBrowserTest : public ExtensionBrowserTest {
       const std::vector<std::string>& expected_errors,
       const std::vector<std::string>& actual_errors) {
     ASSERT_EQ(expected_errors, actual_errors);
+    finished_ = true;
   }
 
   // This should only be called once per test instance. Calling more than once
@@ -77,6 +78,7 @@ class RequirementsCheckerBrowserTest : public ExtensionBrowserTest {
 
  protected:
   std::unique_ptr<RequirementsChecker> checker_;
+  bool finished_ = false;
 };
 
 IN_PROC_BROWSER_TEST_F(RequirementsCheckerBrowserTest, CheckEmptyExtension) {
@@ -87,6 +89,7 @@ IN_PROC_BROWSER_TEST_F(RequirementsCheckerBrowserTest, CheckEmptyExtension) {
       &RequirementsCheckerBrowserTest::ValidateRequirementErrors,
       base::Unretained(this), std::vector<std::string>()));
   content::RunAllBlockingPoolTasksUntilIdle();
+  EXPECT_TRUE(finished_);
 }
 
 IN_PROC_BROWSER_TEST_F(RequirementsCheckerBrowserTest, CheckNpapiExtension) {
@@ -104,6 +107,7 @@ IN_PROC_BROWSER_TEST_F(RequirementsCheckerBrowserTest, CheckNpapiExtension) {
       &RequirementsCheckerBrowserTest::ValidateRequirementErrors,
       base::Unretained(this), expected_errors));
   content::RunAllBlockingPoolTasksUntilIdle();
+  EXPECT_TRUE(finished_);
 }
 
 IN_PROC_BROWSER_TEST_F(RequirementsCheckerBrowserTest,
@@ -122,6 +126,7 @@ IN_PROC_BROWSER_TEST_F(RequirementsCheckerBrowserTest,
       &RequirementsCheckerBrowserTest::ValidateRequirementErrors,
       base::Unretained(this), expected_errors));
   content::RunAllBlockingPoolTasksUntilIdle();
+  EXPECT_TRUE(finished_);
 }
 
 IN_PROC_BROWSER_TEST_F(RequirementsCheckerBrowserTest, DisallowWebGL) {
@@ -143,6 +148,7 @@ IN_PROC_BROWSER_TEST_F(RequirementsCheckerBrowserTest, DisallowWebGL) {
       &RequirementsCheckerBrowserTest::ValidateRequirementErrors,
       base::Unretained(this), expected_errors));
   content::RunAllBlockingPoolTasksUntilIdle();
+  EXPECT_TRUE(finished_);
 }
 
 IN_PROC_BROWSER_TEST_F(RequirementsCheckerBrowserTest, Check3DExtension) {
@@ -161,6 +167,7 @@ IN_PROC_BROWSER_TEST_F(RequirementsCheckerBrowserTest, Check3DExtension) {
       &RequirementsCheckerBrowserTest::ValidateRequirementErrors,
       base::Unretained(this), expected_errors));
   content::RunAllBlockingPoolTasksUntilIdle();
+  EXPECT_TRUE(finished_);
 }
 
 }  // namespace extensions