system/core: Rename "chromeos" -> "brillo" in include paths and namespaces

libchromeos is transitioning to libbrillo and chromeos namespaces
and include directory is changing to brillo.

Bug: 24872993
Change-Id: I797613a38c7444a113f12e38366a424388477276
diff --git a/crash_reporter/crash_collector.cc b/crash_reporter/crash_collector.cc
index ae56b4c..2a9d1d3 100644
--- a/crash_reporter/crash_collector.cc
+++ b/crash_reporter/crash_collector.cc
@@ -35,8 +35,8 @@
 #include <base/strings/string_split.h>
 #include <base/strings/string_util.h>
 #include <base/strings/stringprintf.h>
-#include <chromeos/key_value_store.h>
-#include <chromeos/process.h>
+#include <brillo/key_value_store.h>
+#include <brillo/process.h>
 
 namespace {
 
@@ -340,7 +340,7 @@
 bool CrashCollector::GetLogContents(const FilePath &config_path,
                                     const std::string &exec_name,
                                     const FilePath &output_file) {
-  chromeos::KeyValueStore store;
+  brillo::KeyValueStore store;
   if (!store.Load(config_path)) {
     LOG(INFO) << "Unable to read log configuration file "
               << config_path.value();
@@ -351,7 +351,7 @@
   if (!store.GetString(exec_name, &command))
     return false;
 
-  chromeos::ProcessImpl diag_process;
+  brillo::ProcessImpl diag_process;
   diag_process.AddArg(kShellPath);
   diag_process.AddStringOption("-c", command);
   diag_process.RedirectOutput(output_file.value());