Fix WebAppInstallTests

There was a comment in a previous CL I forgot to address - fixing it now.

Bug: 1015383,1006230
Change-Id: Ia54ea6a21d81d5fc24f180b9d39a9d182d5ee900
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1903137Reviewed-by: Giovanni Ortuño Urquidi <ortuno@chromium.org>
Commit-Queue: Anatoliy Potapchuk <apotapchuk@chromium.org>
Cr-Commit-Position: refs/heads/master@{#713782}

chrome/browser/web_applications/web_app_install_task_unittest.cc

@@ -1287,7 +1287,7 @@ TEST_F(WebAppInstallTaskTest, LoadAndRetrieveWebApplicationInfoWithIcons) {
 
     std::unique_ptr<WebApplicationInfo> result =
         LoadAndRetrieveWebApplicationInfoWithIcons(url);
-    EXPECT_TRUE(!result);
+    EXPECT_FALSE(result);
   }
   {
     CreateDefaultDataToRetrieve(url);
@@ -1296,7 +1296,7 @@ TEST_F(WebAppInstallTaskTest, LoadAndRetrieveWebApplicationInfoWithIcons) {
 
     std::unique_ptr<WebApplicationInfo> result =
         LoadAndRetrieveWebApplicationInfoWithIcons(url);
-    EXPECT_TRUE(!result);
+    EXPECT_FALSE(result);
   }
   {
     CreateDefaultDataToRetrieve(start_url);