CrOS: Add print statements to help debug BrowserProcessImpl::Unpin crash.

chrome/browser/browser_process_impl.cc

Index: chrome/browser/browser_process_impl.cc
diff --git a/chrome/browser/browser_process_impl.cc b/chrome/browser/browser_process_impl.cc
index 5ec7f984898a06b53aa354c26d737117ecc37c54..c1696a5993c2fa70abdafce402514c197002273a 100644
--- a/chrome/browser/browser_process_impl.cc
+++ b/chrome/browser/browser_process_impl.cc
@@ -15,7 +15,9 @@
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/command_line.h"
+#include "base/debug/alias.h"
 #include "base/debug/crash_logging.h"
+#include "base/debug/dump_without_crashing.h"
 #include "base/debug/leak_annotations.h"
 #include "base/files/file_path.h"
 #include "base/location.h"
@@ -1343,6 +1345,17 @@ void BrowserProcessImpl::Unpin() {
   __lsan_do_leak_check();
 #endif
 
+  // TODO(sammiequon): This is used to help debug the crash in crbug.com/660962.
+  // Remove this when the crash is fixed or if verified to not be related to
+  // this.
+  if (!base::MessageLoop::current()->is_running()) {
+    std::string debug_info = KeepAliveRegistry::GetInstance()->ToString();
+    char debug_buffer[100];
+    base::strlcpy(debug_buffer, debug_info.c_str(), arraysize(debug_buffer));
+    base::debug::Alias(&debug_buffer);
+    base::debug::DumpWithoutCrashing();
+  }
+
   CHECK(base::MessageLoop::current()->is_running());
 
 #if defined(OS_MACOSX)