[BlobStorage] Enforcing renderer constraints to prevent broken blobs

third_party/WebKit/Source/core/fileapi/FileTest.cpp

Index: third_party/WebKit/Source/core/fileapi/FileTest.cpp
diff --git a/third_party/WebKit/Source/core/fileapi/FileTest.cpp b/third_party/WebKit/Source/core/fileapi/FileTest.cpp
index 7dabbb0f71053f0c8d4bfaeef83fcbeb25fc8355..bd8c1882ef9977404d317e3d09dba04587912c9c 100644
--- a/third_party/WebKit/Source/core/fileapi/FileTest.cpp
+++ b/third_party/WebKit/Source/core/fileapi/FileTest.cpp
@@ -4,6 +4,7 @@
 
 #include "core/fileapi/File.h"
 
+#include "platform/FileMetadata.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace blink {
@@ -33,6 +34,17 @@ TEST(FileTest, fileSystemFileWithNativeSnapshot) {
   EXPECT_TRUE(file->fileSystemURL().isEmpty());
 }
 
+TEST(FileTest, fileSystemFileWithNativeSnapshotAndSize) {
+  FileMetadata metadata;
+  metadata.length = 1024ll;
+  metadata.platformPath = "/native/snapshot";
+  File* const file =
+      File::createForFileSystemFile("name", metadata, File::IsUserVisible);
+  EXPECT_TRUE(file->hasBackingFile());
+  EXPECT_EQ("/native/snapshot", file->path());
+  EXPECT_TRUE(file->fileSystemURL().isEmpty());
+}
+
 TEST(FileTest, fileSystemFileWithoutNativeSnapshot) {
   KURL url(ParsedURLStringTag(),
            "filesystem:http://example.com/isolated/hash/non-native-file");