base: Remove the string logging from CHECK().

content/zygote/zygote_main_linux.cc

Index: content/zygote/zygote_main_linux.cc
diff --git a/content/zygote/zygote_main_linux.cc b/content/zygote/zygote_main_linux.cc
index 02beffae8a89ff2488c5be74efc600316fb31f06..29096c943c83864740985c379c7006416e341eea 100644
--- a/content/zygote/zygote_main_linux.cc
+++ b/content/zygote/zygote_main_linux.cc
@@ -438,10 +438,9 @@ static bool EnterSuidSandbox(sandbox::SetuidSandboxClient* setuid_sandbox,
     return false;
 
   if (setuid_sandbox->IsInNewPIDNamespace()) {
-    CHECK_EQ(1, getpid())
-        << "The SUID sandbox created a new PID namespace but Zygote "
-           "is not the init process. Please, make sure the SUID "
-           "binary is up to date.";
+    // The SUID sandbox created a new PID namespace but Zygote is not the init
+    // process. Please, make sure the SUID binary is up to date.
+    CHECK_EQ(1, getpid());
   }
 
   if (getpid() == 1) {
@@ -557,8 +556,8 @@ static void EnterLayerOneSandbox(LinuxSandbox* linux_sandbox,
   sandbox::SetuidSandboxClient* setuid_sandbox =
       linux_sandbox->setuid_sandbox_client();
   if (setuid_sandbox->IsSuidSandboxChild()) {
-    CHECK(EnterSuidSandbox(setuid_sandbox, post_fork_parent_callback))
-        << "Failed to enter setuid sandbox";
+    // Failed to enter setuid sandbox
+    CHECK(EnterSuidSandbox(setuid_sandbox, post_fork_parent_callback));
   } else if (sandbox::NamespaceSandbox::InNewUserNamespace()) {
     EnterNamespaceSandbox(linux_sandbox, post_fork_parent_callback);
   } else {