Re-apply DevTools: Support delete cookie by name.

net/base/cookie_monster.cc

Index: net/base/cookie_monster.cc
===================================================================
--- net/base/cookie_monster.cc	(revision 30580)
+++ net/base/cookie_monster.cc	(working copy)
@@ -792,13 +792,28 @@
   if (!HasCookieableScheme(url))
     return;
 
-  for (CookieMapItPair its = cookies_.equal_range(url.host());
-       its.first != its.second; ++its.first) {
-    if (its.first->second->Name() == cookie_name) {
-      InternalDeleteCookie(its.first, true);
-      return;
-    }
+  CookieOptions options;
+  options.set_include_httponly();
+  // Get the cookies for this host and its domain(s).
+  std::vector<CanonicalCookie*> cookies;
+  FindCookiesForHostAndDomain(url, options, &cookies);
+  std::set<CanonicalCookie*> matching_cookies;
+
+  for (std::vector<CanonicalCookie*>::const_iterator it = cookies.begin();
+       it != cookies.end(); ++it) {
+    if ((*it)->Name() != cookie_name)
+      continue;
+    if (url.path().find((*it)->Path()))
+      continue;
+    matching_cookies.insert(*it);
   }
+
+  for (CookieMap::iterator it = cookies_.begin(); it != cookies_.end();) {
+    CookieMap::iterator curit = it;
+    ++it;
+    if (matching_cookies.find(curit->second) != matching_cookies.end())
+      InternalDeleteCookie(curit, true);
+  }
 }
 
 CookieMonster::CookieList CookieMonster::GetAllCookies() {