DevTools: Use grey hint text for applied suggestion in TextPrompt

third_party/WebKit/LayoutTests/http/tests/inspector-unit/text-prompt-hint.html

Index: third_party/WebKit/LayoutTests/http/tests/inspector-unit/text-prompt-hint.html
diff --git a/third_party/WebKit/LayoutTests/http/tests/inspector-unit/text-prompt-hint.html b/third_party/WebKit/LayoutTests/http/tests/inspector-unit/text-prompt-hint.html
index 6100c27aad5c97fe0e992a3b71a5be7c8d59724e..75c65df63e04e19c50bb13d84c4140c75cf4fc05 100644
--- a/third_party/WebKit/LayoutTests/http/tests/inspector-unit/text-prompt-hint.html
+++ b/third_party/WebKit/LayoutTests/http/tests/inspector-unit/text-prompt-hint.html
@@ -56,6 +56,12 @@ function test()
     {
         completionsDone();
         dumpTextPrompt();
+        prompt.setText("something_before test");
+        prompt.complete();
+        completionsDone();
+        dumpTextPrompt();
+        typeCharacter("T");
+        dumpTextPrompt();
         UnitTest.completeTest();
     }
 
@@ -91,7 +97,7 @@ function test()
 
         var selection = element.getComponentSelection();
         var range = selection.getRangeAt(0);
-        var textNode = prompt._ghostTextElement ? prompt._ghostTextElement.previousSibling : element.childTextNodes()[element.childTextNodes().length - 1];
+        var textNode = prompt._ghostTextElement.parentNode ? prompt._ghostTextElement.previousSibling : element.childTextNodes()[element.childTextNodes().length - 1];
         if (!character)
             textNode.textContent = textNode.textContent.substring(0,textNode.textContent.length-1);
         else