Use vndr instead of godep.

Signed-off-by: Lantao Liu <lantaol@google.com>

vendor/github.com/golang/mock/AUTHORS

@@ -1,12 +0,0 @@
-# This is the official list of GoMock authors for copyright purposes.
-# This file is distinct from the CONTRIBUTORS files.
-# See the latter for an explanation.
-
-# Names should be added to this file as
-#	Name or Organization <email address>
-# The email address is not required for organizations.
-
-# Please keep the list sorted.
-
-Alex Reece <awreece@gmail.com>
-Google Inc.

vendor/github.com/golang/mock/CONTRIBUTORS

@@ -1,37 +0,0 @@
-# This is the official list of people who can contribute (and typically
-# have contributed) code to the gomock repository.
-# The AUTHORS file lists the copyright holders; this file
-# lists people.  For example, Google employees are listed here
-# but not in AUTHORS, because Google holds the copyright.
-#
-# The submission process automatically checks to make sure
-# that people submitting code are listed in this file (by email address).
-#
-# Names should be added to this file only after verifying that
-# the individual or the individual's organization has agreed to
-# the appropriate Contributor License Agreement, found here:
-#
-#     http://code.google.com/legal/individual-cla-v1.0.html
-#     http://code.google.com/legal/corporate-cla-v1.0.html
-#
-# The agreement for individuals can be filled out on the web.
-#
-# When adding J Random Contributor's name to this file,
-# either J's name or J's organization's name should be
-# added to the AUTHORS file, depending on whether the
-# individual or corporate CLA was used.
-
-# Names should be added to this file like so:
-#     Name <email address>
-#
-# An entry with two email addresses specifies that the
-# first address should be used in the submit logs and
-# that the second address should be recognized as the
-# same person when interacting with Rietveld.
-
-# Please keep the list sorted.
-
-Aaron Jacobs <jacobsa@google.com> <aaronjjacobs@gmail.com>
-Alex Reece <awreece@gmail.com>
-David Symonds <dsymonds@golang.org>
-Ryan Barrett <ryanb@google.com>

vendor/github.com/golang/mock/README.md

@@ -0,0 +1,81 @@
+GoMock is a mocking framework for the [Go programming language][golang]. It
+integrates well with Go's built-in `testing` package, but can be used in other
+contexts too.
+
+
+Installation
+------------
+
+Once you have [installed Go][golang-install], run these commands
+to install the `gomock` package and the `mockgen` tool:
+
+    go get github.com/golang/mock/gomock
+    go get github.com/golang/mock/mockgen
+
+
+Documentation
+-------------
+
+After installing, you can use `go doc` to get documentation:
+
+    go doc github.com/golang/mock/gomock
+
+Alternatively, there is an online reference for the package hosted on GoPkgDoc
+[here][gomock-ref].
+
+
+Running mockgen
+---------------
+
+`mockgen` has two modes of operation: source and reflect.
+Source mode generates mock interfaces from a source file.
+It is enabled by using the -source flag. Other flags that
+may be useful in this mode are -imports and -aux_files.
+
+Example:
+
+	mockgen -source=foo.go [other options]
+
+Reflect mode generates mock interfaces by building a program
+that uses reflection to understand interfaces. It is enabled
+by passing two non-flag arguments: an import path, and a
+comma-separated list of symbols.
+
+Example:
+
+	mockgen database/sql/driver Conn,Driver
+
+The `mockgen` command is used to generate source code for a mock
+class given a Go source file containing interfaces to be mocked.
+It supports the following flags:
+
+ *  `-source`: A file containing interfaces to be mocked.
+
+ *  `-destination`: A file to which to write the resulting source code. If you
+    don't set this, the code is printed to standard output.
+
+ *  `-package`: The package to use for the resulting mock class
+    source code. If you don't set this, the package name is `mock_` concatenated
+    with the package of the input file.
+
+ *  `-imports`: A list of explicit imports that should be used in the resulting
+    source code, specified as a comma-separated list of elements of the form
+    `foo=bar/baz`, where `bar/baz` is the package being imported and `foo` is
+    the identifier to use for the package in the generated source code.
+
+ *  `-aux_files`: A list of additional files that should be consulted to
+    resolve e.g. embedded interfaces defined in a different file. This is
+    specified as a comma-separated list of elements of the form
+    `foo=bar/baz.go`, where `bar/baz.go` is the source file and `foo` is the
+    package name of that file used by the -source file.
+
+For an example of the use of `mockgen`, see the `sample/` directory. In simple
+cases, you will need only the `-source` flag.
+
+
+TODO: Brief overview of how to create mock objects and set up expectations, and
+an example.
+
+[golang]: http://golang.org/
+[golang-install]: http://golang.org/doc/install.html#releases
+[gomock-ref]: http://godoc.org/github.com/golang/mock/gomock