Add a chrome://webapks page.

chrome/browser/android/webapk/webapk_info.h

Index: chrome/browser/android/webapk/webapk_info.h
diff --git a/chrome/browser/android/webapk/webapk_info.h b/chrome/browser/android/webapk/webapk_info.h
new file mode 100644
index 0000000000000000000000000000000000000000..434ce45cd23ab3dbe75d32cdb29445a9784e8a85
--- /dev/null
+++ b/chrome/browser/android/webapk/webapk_info.h
@@ -0,0 +1,44 @@
+// 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.
+
+#ifndef CHROME_BROWSER_ANDROID_WEBAPK_WEBAPK_INFO_H_
+#define CHROME_BROWSER_ANDROID_WEBAPK_WEBAPK_INFO_H_
+
+#include <string>
+
+#include "base/macros.h"
+
+// Structure with information about a WebAPK.
+//
+// This class is passed around in a std::vector to generate the chrome://webapks
+// page. To reduce copying overhead, this class is move-only, and
+// move-constructs its string arguments (which are copied from Java to C++ into
+// a temporary prior to construction).
+struct WebApkInfo {
+  WebApkInfo(std::string&& short_name,

[dominickn, 2017/01/27 05:42:33]

Sorry! One last thing: remove && from the two string arguments here so it's pass
by value.

Reason: I've just realised that rvalue reference arguments are only permitted
for move constructors and move operators by the style guide
(https://chromium-cpp.appspot.com/).

Removing && here will preserve the move semantics and be compliant with the
style guide (calling std::move() on the string argument when constructing this
will move the string into the value, so it won't copy/construct a new string).

[gonzalon, 2017/01/27 19:25:24]

Sure! Done.

+             std::string&& package_name,
+             int shell_apk_version,
+             int version_code);
+  ~WebApkInfo();
+
+  WebApkInfo& operator=(WebApkInfo&& other) = default;
+  WebApkInfo(WebApkInfo&& other) = default;
+
+  // Short name of the WebAPK.
+  std::string short_name;
+
+  // Package name of the WebAPK.
+  std::string package_name;
+
+  // Shell APK version of the WebAPK.
+  int shell_apk_version;
+
+  // Version code of the WebAPK.
+  int version_code;
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(WebApkInfo);
+};
+
+#endif  // CHROME_BROWSER_ANDROID_WEBAPK_WEBAPK_INFO_H_