Fix typo of file-type extension: btskin

Bug: 808721
Cq-Include-Trybots: master.tryserver.chromium.linux:closure_compilation
Change-Id: I0bb1055e363340ab58db1d557f2e9c46dc5a33d8
Reviewed-on: https://chromium-review.googlesource.com/912388
Commit-Queue: Nathan Parker <nparker@chromium.org>
Reviewed-by: Jialiu Lin (OOO Feb 14-19) <jialiul@chromium.org>
Reviewed-by: David Trainor <dtrainor@chromium.org>
Cr-Commit-Position: refs/heads/master@{#537680}

chrome/browser/resources/safe_browsing/download_file_types.asciipb

@@ -8,7 +8,7 @@
 ##
 ## Top level settings
 ##
-version_id: 15
+version_id: 16
 sampled_ping_probability: 0.01
 max_archived_binaries_to_report: 10
 default_file_type {
@@ -797,7 +797,7 @@ file_types {
 file_types {
   # Opened by uTorrent and Transmission (can be a renamed .torrent)
   # Added crbug.com/767502
-  extension: "btbtskin"
+  extension: "btskin"
   uma_value: 299
   ping_setting: FULL_PING
 }

content/browser/download/download_stats.cc

@@ -226,7 +226,7 @@ constexpr const base::FilePath::CharType* kDangerousFileTypes[] = {
     FILE_PATH_LITERAL(".vssx"),        FILE_PATH_LITERAL(".vstx"),       // 294
     FILE_PATH_LITERAL(".vsdm"),        FILE_PATH_LITERAL(".vssm"),       // 296
     FILE_PATH_LITERAL(".vstm"),        FILE_PATH_LITERAL(".btapp"),      // 298
-    FILE_PATH_LITERAL(".btbtskin"),    FILE_PATH_LITERAL(".btinstall"),  // 300
+    FILE_PATH_LITERAL(".btskin"),      FILE_PATH_LITERAL(".btinstall"),  // 300
     FILE_PATH_LITERAL(".btkey"),       FILE_PATH_LITERAL(".btsearch"),   // 302
     FILE_PATH_LITERAL(".dhtml"),       FILE_PATH_LITERAL(".dhtm"),       // 304
     FILE_PATH_LITERAL(".dht"),         FILE_PATH_LITERAL(".shtml"),      // 306

tools/metrics/histograms/enums.xml

@@ -10188,7 +10188,7 @@ Called by update_net_error_codes.py.-->
   <int value="296" label="vssm"/>
   <int value="297" label="vstm"/>
   <int value="298" label="btapp"/>
-  <int value="299" label="btbtskin"/>
+  <int value="299" label="btskin"/>
   <int value="300" label="btinstall"/>
   <int value="301" label="btkey"/>
   <int value="302" label="btsearch"/>
@@ -38533,7 +38533,7 @@ Called by update_net_trust_anchors.py.-->
   <int value="296" label="VSSM"/>
   <int value="297" label="VSTM"/>
   <int value="298" label="BTAPP"/>
-  <int value="299" label="BTBTSKIN"/>
+  <int value="299" label="BTSKIN"/>
   <int value="300" label="BTINSTALL"/>
   <int value="301" label="BTKEY"/>
   <int value="302" label="BTSEARCH"/>