Fix ftp subresource deprecation message.

third_party/WebKit/Source/core/frame/Deprecation.cpp

Index: third_party/WebKit/Source/core/frame/Deprecation.cpp
diff --git a/third_party/WebKit/Source/core/frame/Deprecation.cpp b/third_party/WebKit/Source/core/frame/Deprecation.cpp
index 348a1e23f61178b7fbf1ed8ec6ba4f67c7c417e2..1307f40095a0cfdf426cfa0712c6e78e3358eac3 100644
--- a/third_party/WebKit/Source/core/frame/Deprecation.cpp
+++ b/third_party/WebKit/Source/core/frame/Deprecation.cpp
@@ -252,7 +252,7 @@ String Deprecation::DeprecationMessage(WebFeature feature) {
     case WebFeature::kLegacyProtocolEmbeddedAsSubresource:
       return String::Format(
           "Subresource requests using legacy protocols (like `ftp:`) are "
-          "are blocked. Please deliver web-accessible resources over modern "
+          "blocked. Please deliver web-accessible resources over modern "
           "protocols like HTTPS. See "
           "https://www.chromestatus.com/feature/5709390967472128 for details.");