BlinkHelpers: Add a type description to view the text of a NGPhysicalTextFragment.

Author: sanketj

extensions/target-specific/chromium/blink/blink-helpers/blink-helpers.js

@@ -673,6 +673,11 @@ Loader.OnLoad(function() {
         });
     }));
 
+    DbgObject.AddTypeDescription(Chromium.RendererProcessType("blink::NGPhysicalTextFragment"), "Text", false, UserEditableFunctions.Create((textFragment) => {
+        return Promise.all([textFragment.f("text_").desc(), textFragment.f("start_offset_").val(), textFragment.f("end_offset_").val()])
+        .thenAll((textString, startOffset, endOffset) => WhitespaceFormatter.CreateFormattedText(textString.substring(startOffset, endOffset)));
+    }));
+
     DbgObject.AddTypeOverride(Chromium.RendererProcessType("blink::NGPhysicalFragment"), "type_", "blink::NGPhysicalFragment::NGFragmentType");
     DbgObject.AddTypeOverride(Chromium.RendererProcessType("blink::NGPhysicalFragment"), "style_variant_", "blink::NGStyleVariant");
     DbgObject.AddTypeOverride(Chromium.RendererProcessType("blink::NGPhysicalFragment"), "line_orientation_", "blink::NGLineOrientation");