contacts: Add ContactMap class.

chrome/browser/chromeos/contacts/contact_test_util.cc

Index: chrome/browser/chromeos/contacts/contact_test_util.cc
diff --git a/chrome/browser/chromeos/contacts/contact_test_util.cc b/chrome/browser/chromeos/contacts/contact_test_util.cc
index af375f78e5e4eac6d8a7689fec9bacab4ad54588..73c047fe8e0ebb3f6cfd3d76cadaf68b04be902c 100644
--- a/chrome/browser/chromeos/contacts/contact_test_util.cc
+++ b/chrome/browser/chromeos/contacts/contact_test_util.cc
@@ -12,6 +12,7 @@
 #include "base/string_number_conversions.h"
 #include "base/string_util.h"
 #include "base/time.h"
+#include "chrome/browser/chromeos/contacts/contact_map.h"
 #include "third_party/skia/include/core/SkBitmap.h"
 #include "third_party/skia/include/core/SkCanvas.h"
 #include "ui/gfx/codec/png_codec.h"
@@ -134,6 +135,15 @@ std::string VarContactsToString(int num_contacts, ...) {
   return ContactsToString(contacts);
 }
 
+std::string ContactMapToString(const ContactMap& contact_map) {
+  ContactPointers contacts;
+  for (ContactMap::const_iterator it = contact_map.begin();
+       it != contact_map.end(); ++it) {
+    contacts.push_back(it->second);
+  }
+  return ContactsToString(contacts);
+}
+
 void CopyContacts(const ContactPointers& source,
                   ScopedVector<Contact>* dest) {
   DCHECK(dest);