Adding warning for missing Label.

If a label is not specified for a source IDL file contianing interfaces
then the version of the interface is assumed to be 1.0 and within the
range of the version being generated.  This CL adds a warning that the
interface label is unspecified. 

BUG=106504
[email protected]

Review URL: https://chromiumcodereview.appspot.com/10565023

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@142633 0039d316-1c4b-4281-b951-d872f2087c98
1 file changed