Implement updateViaCache flag and no-cache by default for main service worker scripts

chrome/browser/chrome_service_worker_browsertest.cc

Index: chrome/browser/chrome_service_worker_browsertest.cc
diff --git a/chrome/browser/chrome_service_worker_browsertest.cc b/chrome/browser/chrome_service_worker_browsertest.cc
index eb79a33ee3abf424a4f8f6d8abae790ef51e142f..4b7939fd0bf2761f82b3bb52196f7a48d57d2459 100644
--- a/chrome/browser/chrome_service_worker_browsertest.cc
+++ b/chrome/browser/chrome_service_worker_browsertest.cc
@@ -34,6 +34,7 @@
 #include "content/public/test/browser_test_utils.h"
 #include "net/test/embedded_test_server/embedded_test_server.h"
 #include "ppapi/shared_impl/ppapi_switches.h"
+#include "third_party/WebKit/public/platform/modules/serviceworker/WebServiceWorkerUpdateViaCache.h"
 
 namespace {
 
@@ -117,6 +118,7 @@ IN_PROC_BROWSER_TEST_F(ChromeServiceWorkerTest,
   GetServiceWorkerContext()->RegisterServiceWorker(
       embedded_test_server()->GetURL("/"),
       embedded_test_server()->GetURL("/service_worker.js"),
+      blink::WebServiceWorkerUpdateViaCache::kImports,
       base::Bind(&ExpectResultAndRun<bool>, true, run_loop.QuitClosure()));
   run_loop.Run();
 
@@ -141,6 +143,7 @@ IN_PROC_BROWSER_TEST_F(ChromeServiceWorkerTest,
   GetServiceWorkerContext()->RegisterServiceWorker(
       embedded_test_server()->GetURL("/"),
       embedded_test_server()->GetURL("/service_worker.js"),
+      blink::WebServiceWorkerUpdateViaCache::kImports,
       base::Bind(&ExpectResultAndRun<bool>, true, run_loop.QuitClosure()));
   run_loop.Run();
 
@@ -168,6 +171,7 @@ IN_PROC_BROWSER_TEST_F(ChromeServiceWorkerTest,
   GetServiceWorkerContext()->RegisterServiceWorker(
       embedded_test_server()->GetURL("/"),
       embedded_test_server()->GetURL("/service_worker.js"),
+      blink::WebServiceWorkerUpdateViaCache::kImports,
       base::Bind(&ExpectResultAndRun<bool>, false, run_loop.QuitClosure()));
   run_loop.Run();
 }
@@ -683,6 +687,7 @@ IN_PROC_BROWSER_TEST_F(ChromeServiceWorkerNavigationHintTest,
   GetServiceWorkerContext()->RegisterServiceWorker(
       embedded_test_server()->GetURL("/scope/"),
       embedded_test_server()->GetURL("/sw.js"),
+      blink::WebServiceWorkerUpdateViaCache::kImports,
       base::Bind(&ExpectResultAndRun<bool>, true, run_loop.QuitClosure()));
   run_loop.Run();
   RunNavigationHintTest("/scope/",