Follow blueprint change to return GlobResult from Glob

Follow I2159cc9d85f388073198eac7456e5bf43e813096 that makes Glob
return a GlobResult.

Bug: 159845846
Test: glob_test.go
Change-Id: Ia771bdbdf1eb668623c4b3f00bf65e0e1e3a55c0

android/paths.go

@@ -1095,11 +1095,12 @@ func existsWithDependencies(ctx PathContext, path SourcePath) (exists bool, err
 		// a single file.
 		files, err = gctx.GlobWithDeps(path.String(), nil)
 	} else {
-		var deps []string
+		var result pathtools.GlobResult
 		// We cannot add build statements in this context, so we fall back to
 		// AddNinjaFileDeps
-		files, deps, err = ctx.Config().fs.Glob(path.String(), nil, pathtools.FollowSymlinks)
-		ctx.AddNinjaFileDeps(deps...)
+		result, err = ctx.Config().fs.Glob(path.String(), nil, pathtools.FollowSymlinks)
+		ctx.AddNinjaFileDeps(result.Deps...)
+		files = result.Matches
 	}
 
 	if err != nil {