More adb buffer fixes.
This patch factors out a lot of the basic protocol code: sending OKAY,
sending FAIL, and sending a length-prefixed string.
ADB_TRACE has been non-optional for a long time, so let's just remove
the #ifs.
Also actually build the device tracker test tool (and remove its duplicate).
Bug: http://b/20666660
Change-Id: I6c7d59f18707bdc62ca69dea45547617f9f31fc6
diff --git a/adb_utils.h b/adb_utils.h
index 4b64afa..84f7d0c 100644
--- a/adb_utils.h
+++ b/adb_utils.h
@@ -24,4 +24,6 @@
std::string escape_arg(const std::string& s);
+void dump_hex(const void* ptr, size_t byte_count);
+
#endif