IndexedDB: Use url::Origin::host() in IndexedDBQuotaClient.

The original code converts the Origin to GURL, then uses

net::GetHostOrSpecFromURL(). This is likely the result of mechanical
conversions replacing GURLs representing origins with url::Origin.

Change-Id: I1fb5e38987b569c88a69bed41450957a33db3f57
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2249387Reviewed-by: Daniel Murphy <dmurph@chromium.org>
Commit-Queue: Daniel Murphy <dmurph@chromium.org>
Auto-Submit: Victor Costan <pwnall@chromium.org>
Cr-Commit-Position: refs/heads/master@{#779341}

content/browser/indexed_db/indexed_db_quota_client.cc

@@ -15,9 +15,9 @@
 #include "base/task_runner_util.h"
 #include "base/threading/sequenced_task_runner_handle.h"
 #include "content/browser/indexed_db/indexed_db_context_impl.h"
-#include "net/base/url_util.h"
 #include "storage/browser/database/database_util.h"
 #include "third_party/blink/public/mojom/quota/quota_types.mojom.h"
+#include "url/origin.h"
 
 using blink::mojom::StorageType;
 using storage::DatabaseUtil;
@@ -60,8 +60,7 @@ void GetOriginsForHostOnIndexedDBThread(
     std::set<url::Origin>* origins_to_return) {
   DCHECK(context->IDBTaskRunner()->RunsTasksInCurrentSequence());
   for (const auto& origin : context->GetAllOrigins()) {
-    GURL origin_url(origin.Serialize());
-    if (host == net::GetHostOrSpecFromURL(origin_url))
+    if (host == origin.host())
       origins_to_return->insert(origin);
   }
 }