[Android] Generate html file for test runner trace instead of json.

build/android/pylib/__init__.py

Index: build/android/pylib/__init__.py
diff --git a/build/android/pylib/__init__.py b/build/android/pylib/__init__.py
index 5dc2d761da51bbd0959d8aa8d26775b0907dbb09..c8a26de4c39ae3611b992d76ce2f347f7c40a313 100644
--- a/build/android/pylib/__init__.py
+++ b/build/android/pylib/__init__.py
@@ -5,16 +5,21 @@
 import os
 import sys
 
-_DEVIL_PATH = os.path.abspath(os.path.join(
-    os.path.dirname(__file__), '..', '..', '..', 'third_party', 'catapult',
-    'devil'))
 
-_PYTRACE_PATH = os.path.abspath(os.path.join(
-    os.path.dirname(__file__), '..', '..', '..', 'third_party', 'catapult',
-    'common', 'py_trace_event'))
+_CATAPULT_PATH = os.path.abspath(os.path.join(
+    os.path.dirname(__file__), '..', '..', '..', 'third_party', 'catapult'))
+
+_DEVIL_PATH = os.path.join(_CATAPULT_PATH, 'devil')
+
+_PYTRACE_PATH = os.path.join(_CATAPULT_PATH, 'common', 'py_trace_event')
+
+_TRACE2HTML_PATH = os.path.join(_CATAPULT_PATH, 'tracing')
 
 if _DEVIL_PATH not in sys.path:
   sys.path.append(_DEVIL_PATH)
 
 if _PYTRACE_PATH not in sys.path:
   sys.path.append(_PYTRACE_PATH)
+
+if _TRACE2HTML_PATH not in sys.path:
+  sys.path.append(_TRACE2HTML_PATH)