Print stack traces in child processes when browser tests failed.

content/renderer/renderer_main.cc

Index: content/renderer/renderer_main.cc
diff --git a/content/renderer/renderer_main.cc b/content/renderer/renderer_main.cc
index 2d82597ee48cf7142cfc54e85ed5c5cd6e8e08cb..3a34300d2d65ea4659564afebbc07711485a2679 100644
--- a/content/renderer/renderer_main.cc
+++ b/content/renderer/renderer_main.cc
@@ -6,7 +6,6 @@
 #include "base/command_line.h"
 #include "base/debug/debugger.h"
 #include "base/debug/leak_annotations.h"
-#include "base/debug/stack_trace.h"
 #include "base/i18n/rtl.h"
 #include "base/message_loop/message_loop.h"
 #include "base/metrics/field_trial.h"
@@ -184,17 +183,8 @@ int RendererMain(const MainFunctionParams& parameters) {
                              renderer_scheduler.Pass());
 #endif
     bool run_loop = true;
-    if (!no_sandbox) {
+    if (!no_sandbox)
       run_loop = platform.EnableSandbox();
-    } else {
-      LOG(ERROR) << "Running without renderer sandbox";
-#if !defined(NDEBUG) || (defined(CFI_ENFORCEMENT) && !defined(OFFICIAL_BUILD))
-      // For convenience, we print the stack traces for crashes.  When sandbox
-      // is enabled, the in-process stack dumping is enabled as part of the
-      // EnableSandbox() call.
-      base::debug::EnableInProcessStackDumping();
-#endif
-    }
 #if defined(OS_POSIX) && !defined(OS_MACOSX)
     RenderProcessImpl render_process;
     RenderThreadImpl::Create(main_message_loop.Pass(),