Allow capturing accessibility trace through adb connected device.

Bug: 157601519
Test: Manual test using local windscope
Change-Id: I776d38dfc22ac4577b568e1d9a67c71ce132df7d

tools/winscope/adb_proxy/winscope_proxy.py

@@ -115,6 +115,11 @@ TRACE_TARGETS = {
         'su root cmd window tracing start\necho "WM trace started."',
         'su root cmd window tracing stop >/dev/null 2>&1'
     ),
+    "accessibility_trace": TraceTarget(
+        File("/data/misc/a11ytrace/a11y_trace.pb", "accessibility_trace"),
+        'su root cmd accessibility start-trace\necho "Accessibility trace started."',
+        'su root cmd accessibility stop-trace >/dev/null 2>&1'
+    ),
     "layers_trace": TraceTarget(
         File("/data/misc/wmtrace/layers_trace.pb", "layers_trace"),
         'su root service call SurfaceFlinger 1025 i32 1\necho "SF trace started."',

tools/winscope/src/DataAdb.vue

@@ -158,6 +158,9 @@ const TRACES = {
   'window_trace': {
     name: 'Window Manager',
   },
+  'accessibility_trace': {
+    name: 'Accessibility',
+  },
   'layers_trace': {
     name: 'Surface Flinger',
   },
@@ -200,6 +203,7 @@ const DUMPS = {
 
 const proxyFileTypeAdapter = {
   'window_trace': FILE_TYPES.WINDOW_MANAGER_TRACE,
+  'accessibility_trace': FILE_TYPES.ACCESSIBILITY_TRACE,
   'layers_trace': FILE_TYPES.SURFACE_FLINGER_TRACE,
   'wl_trace': FILE_TYPES.WAYLAND_TRACE,
   'layers_dump': FILE_TYPES.SURFACE_FLINGER_DUMP,