Don't implicitly run "pub get".

test/serve/web_socket/url_to_asset_id_test.dart

Index: test/serve/web_socket/url_to_asset_id_test.dart
diff --git a/test/serve/web_socket/url_to_asset_id_test.dart b/test/serve/web_socket/url_to_asset_id_test.dart
index f268c50b81414b88e3315a6fa9b4f7cdf84306e7..de49150baf2cd8e0e849e5503fd30545c5b60168 100644
--- a/test/serve/web_socket/url_to_asset_id_test.dart
+++ b/test/serve/web_socket/url_to_asset_id_test.dart
@@ -39,10 +39,12 @@ main() {
         ])
       ])
     ]).create();
+
+    pubGet();
   });
 
   integration("converts URLs to matching asset ids in web/", () {
-    pubServe(shouldGetFirst: true);
+    pubServe();
     expectWebSocketResult("urlToAssetId", {
       "url": getServerUrl("web", "index.html")
     }, {"package": "myapp", "path": "web/index.html"});
@@ -51,7 +53,7 @@ main() {
 
   integration("converts URLs to matching asset ids in subdirectories of web/",
       () {
-    pubServe(shouldGetFirst: true);
+    pubServe();
     expectWebSocketResult("urlToAssetId", {
       "url": getServerUrl("web", "sub/bar.html")
     }, {"package": "myapp", "path": "web/sub/bar.html"});
@@ -59,7 +61,7 @@ main() {
   });
 
   integration("converts URLs to matching asset ids in test/", () {
-    pubServe(shouldGetFirst: true);
+    pubServe();
     expectWebSocketResult("urlToAssetId", {
       "url": getServerUrl("test", "index.html")
     }, {"package": "myapp", "path": "test/index.html"});
@@ -68,7 +70,7 @@ main() {
 
   integration("converts URLs to matching asset ids in subdirectories of test/",
       () {
-    pubServe(shouldGetFirst: true);
+    pubServe();
     expectWebSocketResult("urlToAssetId", {
       "url": getServerUrl("test", "sub/bar.html")
     }, {"package": "myapp", "path": "test/sub/bar.html"});
@@ -78,7 +80,7 @@ main() {
   integration("converts URLs to matching asset ids in the entrypoint's lib/",
       () {
     // Path in root package's lib/.
-    pubServe(shouldGetFirst: true);
+    pubServe();
     expectWebSocketResult("urlToAssetId", {
       "url": getServerUrl("web", "packages/myapp/myapp.dart")
     }, {"package": "myapp", "path": "lib/myapp.dart"});
@@ -87,7 +89,7 @@ main() {
 
   integration("converts URLs to matching asset ids in a dependency's lib/", () {
     // Path in lib/.
-    pubServe(shouldGetFirst: true);
+    pubServe();
     expectWebSocketResult("urlToAssetId", {
       "url": getServerUrl("web", "packages/foo/foo.dart")
     }, {"package": "foo", "path": "lib/foo.dart"});