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

chrome/browser/extensions/extension_special_storage_policy.h

Index: chrome/browser/extensions/extension_special_storage_policy.h
diff --git a/chrome/browser/extensions/extension_special_storage_policy.h b/chrome/browser/extensions/extension_special_storage_policy.h
index cce5b043b4fef715ccb6f6e279d8fb88ee39b542..5f4ffbb5d9ab855af9595050546661fb66d84c64 100644
--- a/chrome/browser/extensions/extension_special_storage_policy.h
+++ b/chrome/browser/extensions/extension_special_storage_policy.h
@@ -39,6 +39,7 @@ class ExtensionSpecialStoragePolicy : public storage::SpecialStoragePolicy {
   bool IsStorageProtected(const GURL& origin) override;
   bool IsStorageUnlimited(const GURL& origin) override;
   bool IsStorageSessionOnly(const GURL& origin) override;
+  bool CanQueryDiskSize(const GURL& origin) override;
   bool HasIsolatedStorage(const GURL& origin) override;
   bool HasSessionOnlyOrigins() override;
   bool IsStorageDurable(const GURL& origin) override;
@@ -87,6 +88,7 @@ class ExtensionSpecialStoragePolicy : public storage::SpecialStoragePolicy {
 
   base::Lock lock_;  // Synchronize all access to the collections.
   SpecialCollection protected_apps_;
+  SpecialCollection installed_apps_;
   SpecialCollection unlimited_extensions_;
   SpecialCollection file_handler_extensions_;
   SpecialCollection isolated_extensions_;