multiple files: Move from DCHECK to DCHECK_EQ

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 988922edcfb5550a0d37cc52851e0cea6a80b58d..51bf9643a3641ba24d0436e2ef04781f820ebf9e 100644
--- a/net/base/mime_util.cc
+++ b/net/base/mime_util.cc
@@ -385,8 +385,8 @@ bool MimeUtil::IsSupportedMimeType(const std::string& mime_type) const {
 bool MimeUtil::MatchesMimeType(const std::string &mime_type_pattern,
                                const std::string &mime_type) const {
   // verify caller is passing lowercase
-  DCHECK(mime_type_pattern == StringToLowerASCII(mime_type_pattern));
-  DCHECK(mime_type == StringToLowerASCII(mime_type));
+  DCHECK_EQ(StringToLowerASCII(mime_type_pattern), mime_type_pattern);
+  DCHECK_EQ(StringToLowerASCII(mime_type), mime_type);
 
   // This comparison handles absolute maching and also basic
   // wildcards.  The plugin mime types could be: