FileAPI: Add WebFileSystem::resolveURL

Source/modules/filesystem/DOMFileSystemBase.cpp

Index: Source/modules/filesystem/DOMFileSystemBase.cpp
diff --git a/Source/modules/filesystem/DOMFileSystemBase.cpp b/Source/modules/filesystem/DOMFileSystemBase.cpp
index 7f9d8dedb3f677e33fedfe69d3b1d1e5ed24f2fe..fbaf868fb32263cbffc9e801fdc92343500aed01 100644
--- a/Source/modules/filesystem/DOMFileSystemBase.cpp
+++ b/Source/modules/filesystem/DOMFileSystemBase.cpp
@@ -138,6 +138,19 @@ KURL DOMFileSystemBase::createFileSystemURL(const String& fullPath) const
     return url;
 }
 
+bool DOMFileSystemBase::pathToAbsolutePath(FileSystemType type, const EntryBase* base, String path, String& absolutePath)
+{
+    ASSERT(base);
+
+    if (!DOMFilePath::isAbsolute(path))
+        path = DOMFilePath::append(base->fullPath(), path);
+    absolutePath = DOMFilePath::removeExtraParentReferences(path);
+
+    if ((type == FileSystemTypeTemporary || type == FileSystemTypePersistent) && !DOMFilePath::isValidPath(absolutePath))
+        return false;
+    return true;
+}
+
 bool DOMFileSystemBase::getMetadata(const EntryBase* entry, PassRefPtr<MetadataCallback> successCallback, PassRefPtr<ErrorCallback> errorCallback, SynchronousType synchronousType)
 {
     OwnPtr<MetadataCallbacks> callbacks(MetadataCallbacks::create(successCallback, errorCallback));
@@ -175,19 +188,6 @@ static bool verifyAndGetDestinationPathForCopyOrMove(const EntryBase* source, En
     return true;
 }
 
-static bool pathToAbsolutePath(FileSystemType type, const EntryBase* base, String path, String& absolutePath)
-{
-    ASSERT(base);
-
-    if (!DOMFilePath::isAbsolute(path))
-        path = DOMFilePath::append(base->fullPath(), path);
-    absolutePath = DOMFilePath::removeExtraParentReferences(path);
-
-    if ((type == FileSystemTypeTemporary || type == FileSystemTypePersistent) && !DOMFilePath::isValidPath(absolutePath))
-        return false;
-    return true;
-}
-
 bool DOMFileSystemBase::move(const EntryBase* source, EntryBase* parent, const String& newName, PassRefPtr<EntryCallback> successCallback, PassRefPtr<ErrorCallback> errorCallback, SynchronousType synchronousType)
 {
     String destinationPath;