DevTools: Preserve the text when doing a line-by-line diff

third_party/WebKit/LayoutTests/inspector/diff-module-expected.txt

Index: third_party/WebKit/LayoutTests/inspector/diff-module-expected.txt
diff --git a/third_party/WebKit/LayoutTests/inspector/diff-module-expected.txt b/third_party/WebKit/LayoutTests/inspector/diff-module-expected.txt
new file mode 100644
index 0000000000000000000000000000000000000000..1ed9f51f48b4d0c3342e707cc692a4b508b8cfb9
--- /dev/null
+++ b/third_party/WebKit/LayoutTests/inspector/diff-module-expected.txt
@@ -0,0 +1,79 @@
+Tests that the Diff module correctly diffs things.
+
+
+=: "test th"
+-: "is"
++: "at"
+=: " sentence"
+-: "."
+
+-: [
+    "test this sentence."
+]
++: [
+    "test that sentence"
+]
+
+=: [
+    "a"
+]
+-: [
+    "b"
+]
+=: [
+    "c"
+]
+
+-: [
+    "a"
+]
+=: [
+    "b"
+]
++: [
+    "a"
+]
+=: [
+    "c"
+]
+
+=: [
+    "a"
+]
++: [
+    "b"
+]
+=: [
+    "c"
+]
+
+=: [
+    "for (var i = 0; i < 100; i++) {"
+]
+-: [
+    "    willBeLeftAlone()",
+    "    willBeDeleted();"
+]
++: [
+    "    willBeLeftAlone();"
+]
+=: [
+    "}"
+]
++: [
+    "insertThisLine();"
+]
+=: [
+    "for (var j = 0; j < 100; j++) {"
+]
+-: [
+    "    console.log('something changed');",
+    "    willBeDeletedAgain();"
+]
++: [
+    "    console.log('changed');"
+]
+=: [
+    "}"
+]
+