IndexedDB: Report QuotaExceededError when commit fails due to disk full

content/browser/indexed_db/indexed_db_browsertest.cc

Index: content/browser/indexed_db/indexed_db_browsertest.cc
diff --git a/content/browser/indexed_db/indexed_db_browsertest.cc b/content/browser/indexed_db/indexed_db_browsertest.cc
index e2b419aaae1fbd4a4e43929fbe929390bc97ed30..962d8de0fc9753197b984a16b615cb1ee6d9e020 100644
--- a/content/browser/indexed_db/indexed_db_browsertest.cc
+++ b/content/browser/indexed_db/indexed_db_browsertest.cc
@@ -441,6 +441,14 @@ IN_PROC_BROWSER_TEST_F(IndexedDBBrowserTest, DeleteForOriginDeletesBlobs) {
   EXPECT_EQ(0, RequestDiskUsage());
 }
 
+IN_PROC_BROWSER_TEST_F(IndexedDBBrowserTest, DiskFullOnCommit) {
+  const int instance_num = 7;

[jsbell, 2015/02/19 19:05:44]

I want to document why this is 7. The test preamble does several commits during
the open phase (creating the database, committing the upgrade, ...). But 7 seems
crazy high.

[jsbell, 2015/02/19 21:26:26]

Done in latest PS. Also filed crbug.com/460236 to try and cut down the number.

+  const int call_num = 1;
+  FailOperation(FAIL_CLASS_LEVELDB_TRANSACTION, FAIL_METHOD_COMMIT_DISK_FULL,
+                instance_num, call_num);
+  SimpleTest(GetTestUrl("indexeddb", "disk_full_on_commit.html"));
+}
+
 namespace {
 
 static void CompactIndexedDBBackingStore(