Revert of Disable gpu_perftests on android. (patchset #1 id:1 of...

Revert of Disable gpu_perftests on android. (patchset #1 id:1 of https://codereview.chromium.org/1014573007/)

Reason for revert:
Fixed already!

Original issue's description:
> Disable gpu_perftests on android.
>
> Failing on Nexus 4/5/7v2 and MotoE.
>
> TBR=dcastagna
> BUG=464373
>
> Committed: https://crrev.com/cbcf11d9fa9fd06dd81dd3faf7f69a0e8f54e54f
> Cr-Commit-Position: refs/heads/master@{#321367}

TBR=
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=464373

Review URL: https://codereview.chromium.org/1016433004

Cr-Commit-Position: refs/heads/master@{#321379}

testing/buildbot/chromium.perf.json

@@ -13,6 +13,11 @@
       {
         "name": "host_info",
         "script": "host_info.py"
+      },
+      {
+        "name": "gpu_perftests",
+        "script": "gtest_perf_test.py",
+        "args": ["gpu_perftests"]
       }
     ]
   },
@@ -21,11 +26,21 @@
       {
         "name": "host_info",
         "script": "host_info.py"
+      },
+      {
+        "name": "gpu_perftests",
+        "script": "gtest_perf_test.py",
+        "args": ["gpu_perftests"]
       }
     ]
   },
   "Android Nexus6 Perf": {
     "scripts": [
+      {
+        "name": "gpu_perftests",
+        "script": "gtest_perf_test.py",
+        "args": ["gpu_perftests"]
+      }
     ]
   },
   "Android Nexus7v2 Perf": {
@@ -33,6 +48,11 @@
       {
         "name": "host_info",
         "script": "host_info.py"
+      },
+      {
+        "name": "gpu_perftests",
+        "script": "gtest_perf_test.py",
+        "args": ["gpu_perftests"]
       }
     ]
   },
@@ -67,6 +87,11 @@
       {
         "name": "host_info",
         "script": "host_info.py"
+      },
+      {
+        "name": "gpu_perftests",
+        "script": "gtest_perf_test.py",
+        "args": ["gpu_perftests"]
       }
     ]
   },