Add a Certificate Viewer link to the Page Info dropdown

chrome/app/vector_icons/certificate.icon

Index: chrome/app/vector_icons/certificate.icon
diff --git a/chrome/app/vector_icons/certificate.icon b/chrome/app/vector_icons/certificate.icon
new file mode 100644
index 0000000000000000000000000000000000000000..d2ffd58ffbb5e97a8750ce2fbcbe117eb0f1fa41
--- /dev/null
+++ b/chrome/app/vector_icons/certificate.icon
@@ -0,0 +1,49 @@
+// Copyright 2017 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+CANVAS_DIMENSIONS, 48,
+MOVE_TO, 33, 32.74f,
+R_CUBIC_TO, 1.75f, -0.62f, 3, -2.28f, 3, -4.24f,
+R_CUBIC_TO, 0, -2.48f, -2.01f, -4.5f, -4.5f, -4.5f,
+CUBIC_TO_SHORTHAND, 27, 26.02f, 27, 28.5f,
+R_CUBIC_TO, 0, 1.96f, 1.25f, 3.63f, 3, 4.24f,
+V_LINE_TO, 36,
+R_H_LINE_TO, 3,
+R_V_LINE_TO, -3.26f,
+CLOSE,
+MOVE_TO, 38, 6,
+R_CUBIC_TO, 2.21f, 0, 4, 1.79f, 4, 4,
+R_V_LINE_TO, 28,
+R_CUBIC_TO, 0, 2.21f, -1.79f, 4, -4, 4,
+H_LINE_TO, 10,
+R_CUBIC_TO, -2.21f, 0, -4, -1.79f, -4, -4,
+V_LINE_TO, 10,
+R_CUBIC_TO, 0, -2.21f, 1.79f, -4, 4, -4,
+R_H_LINE_TO, 28,
+CLOSE,
+MOVE_TO, 12, 30,
+R_V_LINE_TO, 3,
+R_H_LINE_TO, 3,
+R_V_LINE_TO, -3,
+R_H_LINE_TO, -3,
+CLOSE,
+R_MOVE_TO, 0, -12,
+R_V_LINE_TO, 3,
+R_H_LINE_TO, 12,
+R_V_LINE_TO, -3,
+H_LINE_TO, 12,
+CLOSE,
+R_MOVE_TO, 0, 6,
+R_V_LINE_TO, 3,
+R_H_LINE_TO, 6,
+R_V_LINE_TO, -3,
+R_H_LINE_TO, -6,
+CLOSE,
+R_MOVE_TO, 0, -12,
+R_V_LINE_TO, 3,
+R_H_LINE_TO, 24,
+R_V_LINE_TO, -3,
+H_LINE_TO, 12,
+CLOSE,
+END