Mark AppleScript downloads as dangerous.

Bug: 850261
Cq-Include-Trybots: master.tryserver.chromium.linux:closure_compilation
Change-Id: I7269b851c9689f7a656bff594871ea873e7b51f8
Reviewed-on: https://chromium-review.googlesource.com/1091143Reviewed-by: Varun Khaneja <vakh@chromium.org>
Reviewed-by: Asanka Herath <asanka@chromium.org>
Reviewed-by: David Trainor <dtrainor@chromium.org>
Commit-Queue: Chris Palmer <palmer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#565424}

chrome/browser/resources/safe_browsing/download_file_types.asciipb

@@ -8,7 +8,7 @@
 ##
 ## Top level settings
 ##
-version_id: 17
+version_id: 18
 sampled_ping_probability: 0.01
 max_archived_binaries_to_report: 10
 default_file_type {
@@ -2644,6 +2644,36 @@ file_types {
     auto_open_hint: DISALLOW_AUTO_OPEN
   }
 }
+file_types {
+  extension: "applescript"
+  uma_value: 310
+  ping_setting: FULL_PING
+  platform_settings {
+    platform: PLATFORM_MAC
+    danger_level: DANGEROUS
+    auto_open_hint: DISALLOW_AUTO_OPEN
+  }
+}
+file_types {
+  extension: "scpt"
+  uma_value: 311
+  ping_setting: FULL_PING
+  platform_settings {
+    platform: PLATFORM_MAC
+    danger_level: DANGEROUS
+    auto_open_hint: DISALLOW_AUTO_OPEN
+  }
+}
+file_types {
+  extension: "scptd"
+  uma_value: 312
+  ping_setting: FULL_PING
+  platform_settings {
+    platform: PLATFORM_MAC
+    danger_level: DANGEROUS
+    auto_open_hint: DISALLOW_AUTO_OPEN
+  }
+}
 file_types {
   # An alias for PKG files, opened by the Mac installer. http://crbug.com/600908
   extension: "mpkg"

components/download/internal/common/download_stats.cc

@@ -235,7 +235,10 @@ constexpr const base::FilePath::CharType* kDangerousFileTypes[] = {
     FILE_PATH_LITERAL(".dhtml"),       FILE_PATH_LITERAL(".dhtm"),       // 304
     FILE_PATH_LITERAL(".dht"),         FILE_PATH_LITERAL(".shtml"),      // 306
     FILE_PATH_LITERAL(".shtm"),        FILE_PATH_LITERAL(".sht"),        // 308
-    FILE_PATH_LITERAL(".slk"),  // 309
+    FILE_PATH_LITERAL(".slk"),                                           // 309
+    FILE_PATH_LITERAL(".applescript"),                                   // 310
+    FILE_PATH_LITERAL(".scpt"),                                          // 311
+    FILE_PATH_LITERAL(".scptd"),                                         // 312
     // NOTE! When you add a type here, please add the UMA value as a comment.
     // These must all match DownloadItem.DangerousFileType in
     // enums.xml. From 263 onward, they should also match

tools/metrics/histograms/enums.xml

@@ -40809,6 +40809,9 @@ Called by update_net_trust_anchors.py.-->
   <int value="307" label="SHTM"/>
   <int value="308" label="SHT"/>
   <int value="309" label="SLK"/>
+  <int value="310" label="APPLESCRIPT"/>
+  <int value="311" label="SCPT"/>
+  <int value="312" label="SCPTD"/>
 </enum>
 
 <enum name="SBClientDownloadIsSignedBinary">