gdata: Fix "save as pdf" to work on Google Drive.

chrome/browser/chromeos/gdata/gdata_util.cc

Index: chrome/browser/chromeos/gdata/gdata_util.cc
diff --git a/chrome/browser/chromeos/gdata/gdata_util.cc b/chrome/browser/chromeos/gdata/gdata_util.cc
index fe764c9ea56c16d80185a3bde161038ae20ee606..f508e14ca9f8f68ea9f7353adb7f242815103872 100644
--- a/chrome/browser/chromeos/gdata/gdata_util.cc
+++ b/chrome/browser/chromeos/gdata/gdata_util.cc
@@ -579,5 +579,20 @@ std::string FormatTimeAsString(const base::Time& time) {
       exploded.hour, exploded.minute, exploded.second, exploded.millisecond);
 }
 
+void PrepareWritableFileAndRun(Profile* profile,
+                               const FilePath& path,
+                               const OpenFileCallback& callback) {
+  if (IsUnderGDataMountPoint(path)) {
+    FilePath remote_path(ExtractGDataPath(path));
+    GetGDataFileSystem(profile)->PrepareWritableFileAndRun(remote_path,
+                                                           callback);
+  } else {
+    if (!callback.is_null()) {
+      content::BrowserThread::GetBlockingPool()->PostTask(
+          FROM_HERE, base::Bind(callback, GDATA_FILE_OK, path));
+    }
+  }
+}
+
 }  // namespace util
 }  // namespace gdata