Fixes bug where chrome hangs in Mac when clicking on Permission link on Extensions.

chrome/browser/ui/cocoa/extensions/extension_install_view_controller_unittest.mm

Index: chrome/browser/ui/cocoa/extensions/extension_install_view_controller_unittest.mm
diff --git a/chrome/browser/ui/cocoa/extensions/extension_install_view_controller_unittest.mm b/chrome/browser/ui/cocoa/extensions/extension_install_view_controller_unittest.mm
index e5640ba8f17abbbd3ba3ddf18f60439e34e920f9..23613108938a277b8fe8831f687054d3278e8196 100644
--- a/chrome/browser/ui/cocoa/extensions/extension_install_view_controller_unittest.mm
+++ b/chrome/browser/ui/cocoa/extensions/extension_install_view_controller_unittest.mm
@@ -280,3 +280,27 @@ TEST_F(ExtensionInstallViewControllerTest, OAuthIssues) {
                                              byItem:[outlineView itemAtRow:3]],
               base::SysUTF16ToNSString(prompt.GetOAuthIssue(0).description));
 }
+
+TEST_F(ExtensionInstallViewControllerTest, PostInstallPermissionsPrompt) {
+  chrome::MockExtensionInstallPromptDelegate delegate;
+
+  ExtensionInstallPrompt::Prompt prompt =
+      chrome::BuildExtensionPostInstallPermissionsPrompt(extension_.get());
+  std::vector<string16> permissions;
+  permissions.push_back(UTF8ToUTF16("warning 1"));
+  prompt.SetPermissions(permissions);
+
+  scoped_nsobject<ExtensionInstallViewController>
+  controller([[ExtensionInstallViewController alloc]
+               initWithNavigator:browser()
+                        delegate:&delegate
+                          prompt:prompt]);
+
+  [controller view];  // Force nib load.
+
+  EXPECT_TRUE([controller cancelButton]);
+  EXPECT_FALSE([controller okButton]);
+
+  [controller cancel:nil];
+  EXPECT_EQ(1, delegate.abort_count());
+}