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

chrome/browser/extensions/extension_storage_monitor.cc

Index: chrome/browser/extensions/extension_storage_monitor.cc
diff --git a/chrome/browser/extensions/extension_storage_monitor.cc b/chrome/browser/extensions/extension_storage_monitor.cc
index 81394f5609bafc272711c2f7fa52fbcef88191ab..7294fbd4fc8a03d9da3bbb61cd4b0667e620df2b 100644
--- a/chrome/browser/extensions/extension_storage_monitor.cc
+++ b/chrome/browser/extensions/extension_storage_monitor.cc
@@ -84,16 +84,17 @@ const Extension* GetExtensionById(content::BrowserContext* context,
       extension_id, ExtensionRegistry::EVERYTHING);
 }
 
-void LogTemporaryStorageUsage(
-    scoped_refptr<storage::QuotaManager> quota_manager,
-    int64_t usage) {
-  const storage::QuotaSettings& settings = quota_manager->settings();
-  if (settings.per_host_quota > 0) {
+void LogTemporaryStorageUsage(int64_t usage,
+                              storage::QuotaStatusCode status,
+                              int64_t global_quota) {
+  if (status == storage::kQuotaStatusOk) {
+    int64_t per_app_quota =
+        global_quota / storage::QuotaManager::kPerHostTemporaryPortion;
     // Note we use COUNTS_100 (instead of PERCENT) because this can potentially
     // exceed 100%.
     UMA_HISTOGRAM_COUNTS_100(
         "Extensions.HostedAppUnlimitedStorageTemporaryStorageUsage",
-        100.0 * usage / settings.per_host_quota);
+        100.0 * usage / per_app_quota);
   }
 }
 
@@ -234,9 +235,12 @@ class StorageEventObserver
       } else {
         // We can't use the quota in the event because it assumes unlimited
         // storage.
-        BrowserThread::PostTask(BrowserThread::IO, FROM_HERE,
-                                base::Bind(&LogTemporaryStorageUsage,
-                                           state.quota_manager, event.usage));
+        BrowserThread::PostTask(
+            BrowserThread::IO,
+            FROM_HERE,
+            base::Bind(&storage::QuotaManager::GetTemporaryGlobalQuota,
+                       state.quota_manager,
+                       base::Bind(&LogTemporaryStorageUsage, event.usage)));
       }
     }