Enabling MHTML.

net/base/mime_util.cc

Index: net/base/mime_util.cc
diff --git a/net/base/mime_util.cc b/net/base/mime_util.cc
index 51bf9643a3641ba24d0436e2ef04781f820ebf9e..b6aa539429798ce5645c0950c90188f88b79e733 100644
--- a/net/base/mime_util.cc
+++ b/net/base/mime_util.cc
@@ -117,7 +117,8 @@ static const MimeInfo secondary_mappings[] = {
   { "application/rdf+xml", "rdf" },
   { "text/xml", "xsl,xbl" },
   { "application/vnd.mozilla.xul+xml", "xul" },
-  { "application/x-shockwave-flash", "swf,swl" }
+  { "application/x-shockwave-flash", "swf,swl" },
+  { "multipart/related", "mht,mhtml" }
 };
 
 static const char* FindMimeType(const MimeInfo* mappings,
@@ -266,12 +267,13 @@ static const char* const supported_non_image_types[] = {
   "application/atom+xml",
   "application/json",
   "application/x-x509-user-cert",
+  "multipart/related",  // For MHTML support.
   "multipart/x-mixed-replace"
   // Note: ADDING a new type here will probably render it AS HTML. This can
   // result in cross site scripting.
 };
-COMPILE_ASSERT(arraysize(supported_non_image_types) == 16,
-               supported_non_images_types_must_equal_16);
+COMPILE_ASSERT(arraysize(supported_non_image_types) == 17,
+               supported_non_images_types_must_equal_17);

[wtc, 2011/05/25 00:31:49]

This COMPILE_ASSERT probably should be removed.  As far as
I can tell, the assertion verifies that the arraysize() macro
works correctly, rather than the supported_non_image_types array
must have a certain number of elements.

 
 //  Mozilla 1.8 and WinIE 7 both accept text/javascript and text/ecmascript.
 //  Mozilla 1.8 accepts application/javascript, application/ecmascript, and