Expose more useful functions that can be used by dumpstate_board().

BUG: 28640932
Fixes: 28867848
Change-Id: I38123e5b348f4560212559176eb60dbad4f22364
diff --git a/cmds/dumpstate/dumpstate.cpp b/cmds/dumpstate/dumpstate.cpp
index 1add346..6a66abd 100644
--- a/cmds/dumpstate/dumpstate.cpp
+++ b/cmds/dumpstate/dumpstate.cpp
@@ -97,7 +97,7 @@
 // TODO: change to "v1" before final N build
 static std::string VERSION_DEFAULT = "v1-dev4";
 
-static bool is_user_build() {
+bool is_user_build() {
     return 0 == strncmp(build_type, "user", PROPERTY_VALUE_MAX - 1);
 }
 
@@ -586,7 +586,6 @@
     return add_zip_entry_from_fd(ZIP_ROOT_DIR + path, fd) ? 0 : 1;
 }
 
-/* adds all files from a directory to the zipped bugreport file */
 void add_dir(const char *dir, bool recursive) {
     if (!zip_writer) {
         MYLOGD("Not adding dir %s because zip_writer is not set\n", dir);
diff --git a/cmds/dumpstate/dumpstate.h b/cmds/dumpstate/dumpstate.h
index 94bfc5a..4769974 100644
--- a/cmds/dumpstate/dumpstate.h
+++ b/cmds/dumpstate/dumpstate.h
@@ -93,6 +93,9 @@
 /* adds a new entry to the existing zip file. */
 bool add_zip_entry_from_fd(const std::string& entry_name, int fd);
 
+/* adds all files from a directory to the zipped bugreport file */
+void add_dir(const char *dir, bool recursive);
+
 /* prints the contents of a file */
 int dump_file(const char *title, const char *path);
 
@@ -196,12 +199,15 @@
 /** Gets the last modification time of a file, or default time if file is not found. */
 time_t get_mtime(int fd, time_t default_mtime);
 
-/* dump eMMC Extended CSD data */
+/* Dumps eMMC Extended CSD data. */
 void dump_emmc_ecsd(const char *ext_csd_path);
 
-/** gets command-line arguments */
+/** Gets command-line arguments. */
 void format_args(int argc, const char *argv[], std::string *args);
 
+/** Tells if the device is running a user build. */
+bool is_user_build();
+
 /*
  * Helper class used to report how long it takes for a section to finish.
  *