chrome: Add out-of-line copy ctors for complex classes.

chrome/browser/extensions/extension_service_test_base.cc

Index: chrome/browser/extensions/extension_service_test_base.cc
diff --git a/chrome/browser/extensions/extension_service_test_base.cc b/chrome/browser/extensions/extension_service_test_base.cc
index 78cfc0490028bcc404ca166afe5cc3d3f59714bf..ab739a44a6a3648010d1e57ce9abe7b1f60af91f 100644
--- a/chrome/browser/extensions/extension_service_test_base.cc
+++ b/chrome/browser/extensions/extension_service_test_base.cc
@@ -78,6 +78,10 @@ ExtensionServiceTestBase::ExtensionServiceInitParams::
       profile_is_supervised(false) {
 }
 
+ExtensionServiceTestBase::ExtensionServiceInitParams::
+    ExtensionServiceInitParams(const ExtensionServiceInitParams& other) =
+        default;
+
 ExtensionServiceTestBase::ExtensionServiceTestBase()
     : thread_bundle_(new content::TestBrowserThreadBundle(kThreadOptions)),
       service_(NULL),