Allow RequestOSFileHandle if an app has unlimited storage

content/browser/fileapi/fileapi_message_filter.cc

Index: content/browser/fileapi/fileapi_message_filter.cc
diff --git a/content/browser/fileapi/fileapi_message_filter.cc b/content/browser/fileapi/fileapi_message_filter.cc
index 7472115213db042bb44b6e3fc10a9ee4b1b1d499..032d0f5d586e36511e398b6c75437c1f56bbe84c 100644
--- a/content/browser/fileapi/fileapi_message_filter.cc
+++ b/content/browser/fileapi/fileapi_message_filter.cc
@@ -35,6 +35,7 @@
 #include "webkit/fileapi/isolated_context.h"
 #include "webkit/fileapi/local_file_system_operation.h"
 #include "webkit/fileapi/sandbox_mount_point_provider.h"
+#include "webkit/quota/quota_manager.h"
 
 using fileapi::FileSystemFileUtil;
 using fileapi::FileSystemMountPointProvider;
@@ -680,20 +681,38 @@ void FileAPIMessageFilter::DidReadDirectory(
   UnregisterOperation(request_id);
 }
 
-void FileAPIMessageFilter::DidOpenFile(int request_id,
-                                       const GURL& path,
-                                       base::PlatformFileError result,
-                                       base::PlatformFile file,
-                                       base::ProcessHandle peer_handle) {
+void FileAPIMessageFilter::DidOpenFile(
+    int request_id,
+    const GURL& path,
+    base::PlatformFileError result,
+    base::PlatformFile file,
+    base::ProcessHandle peer_handle) {
   if (result == base::PLATFORM_FILE_OK) {
     IPC::PlatformFileForTransit file_for_transit =
         file != base::kInvalidPlatformFileValue ?
             IPC::GetFileHandleForProcess(file, peer_handle, true) :
             IPC::InvalidPlatformFileForTransit();
     open_filesystem_urls_.insert(path);
-    Send(new FileSystemMsg_DidOpenFile(request_id, file_for_transit));
+
+    quota::QuotaLimitType quota_limit_type = quota::kQuotaLimitTypeUnknown;
+    quota::QuotaManagerProxy* quota_manager_proxy =
+        context_->quota_manager_proxy();
+    if (quota_manager_proxy) {
+      FileSystemURL url = context_->CrackURL(path);
+      if (quota_manager_proxy->quota_manager()->IsStorageUnlimited(
+              url.origin(), FileSystemTypeToQuotaStorageType(url.type()))) {
+        quota_limit_type = quota::kQuotaLimitTypeUnlimited;
+      } else {
+        quota_limit_type = quota::kQuotaLimitTypeLimited;
+      }
+    }
+
+    Send(new FileSystemMsg_DidOpenFile(request_id,
+                                       file_for_transit,
+                                       quota_limit_type));
   } else {
-    Send(new FileSystemMsg_DidFail(request_id, result));
+    Send(new FileSystemMsg_DidFail(request_id,
+                                   result));
   }
   UnregisterOperation(request_id);
 }