Implement DropBox uploading

This patch adds a --dropbox flag to the perfetto tool for uploading the
recorded trace file into DropBox.

Change-Id: I42ce9080292aa45f2442033a5c1d23c83e6e3855
diff --git a/Android.bp b/Android.bp
index 8db1700..1ecc372 100644
--- a/Android.bp
+++ b/Android.bp
@@ -62,8 +62,10 @@
   ],
   shared_libs: [
     "libandroid",
+    "libbinder",
     "liblog",
     "libprotobuf-cpp-lite",
+    "libservices",
     "libutils",
   ],
   static_libs: [
@@ -95,7 +97,9 @@
   ],
   shared_libs: [
     "libandroid",
+    "libbinder",
     "liblog",
+    "libservices",
     "libtraced_shared",
     "libutils",
   ],
@@ -835,7 +839,9 @@
   ],
   shared_libs: [
     "libandroid",
+    "libbinder",
     "liblog",
+    "libservices",
     "libtraced_shared",
     "libutils",
   ],
@@ -855,7 +861,9 @@
   ],
   shared_libs: [
     "libandroid",
+    "libbinder",
     "liblog",
+    "libservices",
     "libtraced_shared",
     "libutils",
   ],