Respect UTF-8 detection result for local file resources

third_party/WebKit/Source/platform/text/TextEncodingDetectorTest.cpp

Index: third_party/WebKit/Source/platform/text/TextEncodingDetectorTest.cpp
diff --git a/third_party/WebKit/Source/platform/text/TextEncodingDetectorTest.cpp b/third_party/WebKit/Source/platform/text/TextEncodingDetectorTest.cpp
index 598dbf3cfcbf924ef9f3d9e6eb97c1ae8cd05b60..e677c990d0fd8770f55201b6a4db796af0811aee 100644
--- a/third_party/WebKit/Source/platform/text/TextEncodingDetectorTest.cpp
+++ b/third_party/WebKit/Source/platform/text/TextEncodingDetectorTest.cpp
@@ -96,4 +96,14 @@ TEST(TextEncodingDetectorTest, UTF8DetectionShouldFail) {
   EXPECT_FALSE(result);
 }
 
+TEST(TextEncodingDetectorTest, RespectUTF8DetectionForFileResource) {
+  std::string utf8Bytes =
+      "tnegirjji gosa gii beare s\xC3\xA1htt\xC3\xA1 \xC4\x8D\xC3"
+      "\xA1llit artihkkaliid. Maid don s\xC3\xA1ht\xC3\xA1t dievasmah";
+  WTF::TextEncoding encoding;
+  bool result = detectTextEncoding(utf8Bytes.c_str(), utf8Bytes.length(),
+                                   nullptr, "file:///text", nullptr, &encoding);
+  EXPECT_TRUE(result);
+}
+
 }  // namespace blink