Change auto_bisect to post results to perf dashboard.

scripts/slave/recipes/bisection/desktop_bisect.expected/basic_perf_tryjob_with_revisions.json

 [
   {
     "cmd": [
       "python",
       "-u",
       "[BUILD]/scripts/slave/bot_update.py",
       "--master",
       "tryserver.chromium.perf",
       "--builder",
       "linux_perf_bisect",
@@ skipping 541 matching lines @@
       "Relative Change: 0.00000%",
       "Standard Error: +- 0.18047 delta",
       "Revision Mean          Std.Error      ",
       "Patch    5.80533333333 0.127614436662 ",
       "No Patch 5.80533333333 0.127614436662 ",
       "@@@",
       "@@@STEP_LINK@HTML Results@http://storage.googleapis.com/chromium-telemetry/html-results/results-without_patch@@@"
     ]
   },
   {
+    "cmd": [
+      "cat",
+      "{\"bisect_bot\": \"\", \"buildbot_log_url\": \"\", \"change\": 0.0, \"cloud_link\": \"http://storage.googleapis.com/chromium-telemetry/html-results/results-without_patch\", \"command\": \"src/tools/perf/run_benchmark -v --browser=release sunspider\", \"metric\": \"dummy/dummy\", \"profiler_links\": [], \"result\": \"Revision       Mean           Std.Error      \\nPatch          5.80533333333  0.127614436662 \\nNo Patch       5.80533333333  0.127614436662 \", \"status\": \"completed\", \"std_err\": 0.1804740670813644, \"try_job_id\": null}"
+    ],
+    "cwd": "[SLAVE_BUILD]",
+    "name": "Results (2)",
+    "stdout": "/path/to/tmp/json",
+    "~followup_annotations": [
+      "@@@STEP_LOG_LINE@json.output (invalid)@null@@@",
+      "@@@STEP_LOG_END@json.output (invalid)@@@"
+    ]
+  },
+  {
+    "cmd": [
+      "python",
+      "-u",
+      "RECIPE_MODULE[perf_dashboard]/resources/post_json.py"
+    ],
+    "cwd": "[SLAVE_BUILD]",
+    "name": "Post bisect results",
+    "stdin": "{\"data\": {\"bisect_bot\": \"\", \"buildbot_log_url\": \"\", \"change\": 0.0, \"cloud_link\": \"http://storage.googleapis.com/chromium-telemetry/html-results/results-without_patch\", \"command\": \"src/tools/perf/run_benchmark -v --browser=release sunspider\", \"metric\": \"dummy/dummy\", \"profiler_links\": [], \"result\": \"Revision       Mean           Std.Error      \\nPatch          5.80533333333  0.127614436662 \\nNo Patch       5.80533333333  0.127614436662 \", \"status\": \"completed\", \"std_err\": 0.1804740670813644, \"try_job_id\": null}, \"url\": \"https://chromeperf.appspot.com/post_bisect_results\"}",
+    "stdout": "/path/to/tmp/json",
+    "~followup_annotations": [
+      "@@@STEP_LOG_LINE@json.output (invalid)@null@@@",
+      "@@@STEP_LOG_END@json.output (invalid)@@@"
+    ]
+  },
+  {
     "name": "$result",
     "recipe_result": null,
     "status_code": 0
   }
 ]