Add file:// scheme for body image

R=mukai@chromium.org, thomasanderson@chromium.org

Change-Id: Ibacf61f28fde4e6e1e0b52a65c3412118eb96e49
Reviewed-on: https://chromium-review.googlesource.com/955323
Commit-Queue: Thomas Anderson <thomasanderson@chromium.org>
Reviewed-by: Peter Beverloo <peter@chromium.org>
Reviewed-by: Thomas Anderson <thomasanderson@chromium.org>
Cr-Commit-Position: refs/heads/master@{#544075}

AUTHORS

@@ -429,6 +429,7 @@ Justin Okamoto <justmoto@amazon.com>
 Jüri Valdmann <juri.valdmann@qt.io>
 Kai Jiang <jiangkai@gmail.com>
 Kai Köhne <kai.koehne@qt.io>
+Kai Uwe Broulik <kde@privat.broulik.de>
 Kal Conley <kcconley@gmail.com>
 Kalyan Kondapally <kalyan.kondapally@intel.com>
 Kamil Jiwa <kamil.jiwa@gmail.com>

chrome/browser/notifications/notification_platform_bridge_linux.cc

@@ -583,7 +583,7 @@ class NotificationPlatformBridgeLinuxImpl
             ResizeImageToFdoMaxSize(notification->image()).As1xPNGBytes());
         if (image_file) {
           body << "<img src=\""
-               << net::EscapePath(image_file->file_path().value())
+               << "file://" + net::EscapePath(image_file->file_path().value())
                << "\" alt=\"\"/>\n";
           data->resource_files.push_back(std::move(image_file));
         }

chrome/browser/notifications/notification_platform_bridge_linux_unittest.cc

@@ -477,7 +477,8 @@ TEST_F(NotificationPlatformBridgeLinuxTest, NotificationImages) {
           [=](const NotificationRequest& request) {
             std::string file_name;
             EXPECT_TRUE(RE2::FullMatch(
-                request.body, "\\<img src=\\\"(.+)\\\" alt=\\\".*\\\"/\\>",
+                request.body,
+                "\\<img src=\\\"file://(.+)\\\" alt=\\\".*\\\"/\\>",
                 &file_name));
             std::string file_contents;
             EXPECT_TRUE(base::ReadFileToString(base::FilePath(file_name),