base: Remove the string logging from CHECK().

extensions/common/manifest_handler.cc

Index: extensions/common/manifest_handler.cc
diff --git a/extensions/common/manifest_handler.cc b/extensions/common/manifest_handler.cc
index 537bb9a1f8b7e71c62c1216899c850cdd65c3d64..c32b602ea696d7f408327438bde99fcffb8ae9fe 100644
--- a/extensions/common/manifest_handler.cc
+++ b/extensions/common/manifest_handler.cc
@@ -223,9 +223,9 @@ void ManifestHandlerRegistry::SortManifestHandlers() {
         ManifestHandlerMap::const_iterator prereq_iter =
             handlers_.find(prerequisites[i]);
         // If the prerequisite does not exist, crash.
-        CHECK(prereq_iter != handlers_.end())
-            << "Extension manifest handler depends on unrecognized key "
-            << prerequisites[i];
+        // Extension manifest handler depends on unrecognized key
+        // |prerequisites[i]|.
+        CHECK(prereq_iter != handlers_.end());
         // Prerequisite is in our map.
         if (base::ContainsKey(priority_map_, prereq_iter->second.get()))
           unsatisfied--;
@@ -245,8 +245,8 @@ void ManifestHandlerRegistry::SortManifestHandlers() {
 
   // If there are any leftover unsorted handlers, they must have had
   // circular dependencies.
-  CHECK_EQ(unsorted_handlers.size(), std::set<ManifestHandler*>::size_type(0))
-      << "Extension manifest handlers have circular dependencies!";
+  // Extension manifest handlers have circular dependencies!
+  CHECK_EQ(unsorted_handlers.size(), std::set<ManifestHandler*>::size_type(0));
 }
 
 }  // namespace extensions