Add ManagePasswordsBubbleManageViewController and unit tests.

chrome/browser/ui/passwords/manage_passwords_bubble_model.cc

Index: chrome/browser/ui/passwords/manage_passwords_bubble_model.cc
diff --git a/chrome/browser/ui/passwords/manage_passwords_bubble_model.cc b/chrome/browser/ui/passwords/manage_passwords_bubble_model.cc
index 7b788884ad862b6213da7406130bf65ac092f773..677965f6802d22969f79043f05c99996ea7008cf 100644
--- a/chrome/browser/ui/passwords/manage_passwords_bubble_model.cc
+++ b/chrome/browser/ui/passwords/manage_passwords_bubble_model.cc
@@ -14,6 +14,7 @@
 #include "components/password_manager/core/common/password_manager_ui.h"
 #include "grit/generated_resources.h"
 #include "ui/base/l10n/l10n_util.h"
+#include "ui/base/resource/resource_bundle.h"
 
 using autofill::PasswordFormMap;
 using content::WebContents;
@@ -21,6 +22,19 @@ namespace metrics_util = password_manager::metrics_util;
 
 namespace {
 
+enum FieldType { USERNAME_FIELD, PASSWORD_FIELD };
+
+const int kUsernameFieldSize = 30;
+const int kPasswordFieldSize = 22;
+
+// Returns the width of |type| field.
+int GetFieldWidth(FieldType type) {
+  return ui::ResourceBundle::GetSharedInstance()
+      .GetFontList(ui::ResourceBundle::SmallFont)
+      .GetExpectedTextWidth(type == USERNAME_FIELD ? kUsernameFieldSize
+                                                   : kPasswordFieldSize);
+}
+
 void SetupLinkifiedText(const base::string16& string_with_separator,
                         base::string16* text,
                         gfx::Range* link_range) {
@@ -179,3 +193,13 @@ void ManagePasswordsBubbleModel::OnPasswordAction(
   else
     password_store->AddLogin(password_form);
 }
+
+// static
+int ManagePasswordsBubbleModel::UsernameFieldWidth() {
+  return GetFieldWidth(USERNAME_FIELD);
+}
+
+// static
+int ManagePasswordsBubbleModel::PasswordFieldWidth() {
+  return GetFieldWidth(PASSWORD_FIELD);
+}