Change how the quota system computes the total poolsize for temporary storage

chrome/browser/extensions/api/downloads/downloads_api_browsertest.cc

Index: chrome/browser/extensions/api/downloads/downloads_api_browsertest.cc
diff --git a/chrome/browser/extensions/api/downloads/downloads_api_browsertest.cc b/chrome/browser/extensions/api/downloads/downloads_api_browsertest.cc
index a8a9eca778bc7557fd472d364cbfbdb39a68cf5b..83f4a0aabc158e7de7a0e2e7754fb2b625ff9476 100644
--- a/chrome/browser/extensions/api/downloads/downloads_api_browsertest.cc
+++ b/chrome/browser/extensions/api/downloads/downloads_api_browsertest.cc
@@ -17,8 +17,8 @@
 #include "base/macros.h"
 #include "base/memory/ptr_util.h"
 #include "base/message_loop/message_loop.h"
+#include "base/run_loop.h"
 #include "base/strings/stringprintf.h"
-#include "base/synchronization/waitable_event.h"
 #include "build/build_config.h"
 #include "chrome/browser/download/download_file_icon_extractor.h"
 #include "chrome/browser/download/download_service.h"
@@ -703,29 +703,28 @@ class HTML5FileWriter {
     }
     // Invoke the fileapi to copy it into the sandboxed filesystem.
     bool result = false;
-    base::WaitableEvent done_event(
-        base::WaitableEvent::ResetPolicy::MANUAL,
-        base::WaitableEvent::InitialState::NOT_SIGNALED);
+    base::RunLoop run_loop;
     BrowserThread::PostTask(
         BrowserThread::IO, FROM_HERE,
         base::Bind(&CreateFileForTestingOnIOThread,
                    base::Unretained(context),
                    path, temp_file,
                    base::Unretained(&result),
-                   base::Unretained(&done_event)));
+                   run_loop.QuitClosure()));
     // Wait for that to finish.
-    done_event.Wait();
+    run_loop.Run();
     base::DeleteFile(temp_file, false);
     return result;
   }
 
  private:
   static void CopyInCompletion(bool* result,
-                               base::WaitableEvent* done_event,
+                               const base::Closure& quit_closure,
                                base::File::Error error) {
     DCHECK_CURRENTLY_ON(BrowserThread::IO);
     *result = error == base::File::FILE_OK;
-    done_event->Signal();
+    BrowserThread::PostTask(
+        BrowserThread::UI, FROM_HERE, quit_closure);
   }
 
   static void CreateFileForTestingOnIOThread(
@@ -733,13 +732,13 @@ class HTML5FileWriter {
       const storage::FileSystemURL& path,
       const base::FilePath& temp_file,
       bool* result,
-      base::WaitableEvent* done_event) {
+      const base::Closure& quit_closure) {
     DCHECK_CURRENTLY_ON(BrowserThread::IO);
     context->operation_runner()->CopyInForeignFile(
         temp_file, path,
         base::Bind(&CopyInCompletion,
                    base::Unretained(result),
-                   base::Unretained(done_event)));
+                   quit_closure));
   }
 };