Convert RTF on the pasteboard to HTML and all it to substitute if present and...

third_party/mozilla/NSPasteboard+Utils.mm

Index: third_party/mozilla/NSPasteboard+Utils.mm
===================================================================
--- third_party/mozilla/NSPasteboard+Utils.mm	(revision 48762)
+++ third_party/mozilla/NSPasteboard+Utils.mm	(working copy)
@@ -279,3 +279,28 @@
   return NO;
 }
 @end
+
+@implementation NSPasteboard(ChromiumHTMLUtils)
+
+// Convert the RTF to HTML via an NSAttributedString.
+- (NSString*)htmlFromRtf {
+  if (![[self types] containsObject:NSRTFPboardType])
+    return @"";
+
+  NSAttributedString* attributed =
+      [[[NSAttributedString alloc]
+             initWithRTF:[self dataForType:NSRTFPboardType]
+      documentAttributes:nil] autorelease];
+  NSDictionary* attributeDict =
+      [NSDictionary dictionaryWithObject:NSHTMLTextDocumentType
+                                  forKey:NSDocumentTypeDocumentAttribute];
+  NSData* htmlData =
+      [attributed dataFromRange:NSMakeRange(0, [attributed length])
+             documentAttributes:attributeDict
+                          error:nil];
+  // According to the docs, NSHTMLTextDocumentType is UTF8.
+  return [[[NSString alloc] 
+      initWithData:htmlData encoding:NSUTF8StringEncoding] autorelease];
+}
+
+@end