[Speed Infra] Restrict bot_platforms to those that run sharded tests.

https://chromium-review.googlesource.com/c/chromium/src/+/1589012
added the new android compilers which also upload resource_sizes
data to bot_platforms. However, in generate_perf_sharding and elsewhere
we assume that every bot_platform has a shard map. Also, the other platforms
in this list are similar in that they run Telemetry benchmarks, whereas
resource_sizes is running some math on the compiler builder to find the
size of the APK and other related data.

Bug: 961830
Change-Id: Ib3c1460923863f21c28e5bfb08ae170ef59565c0
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1612359
Commit-Queue: Caleb Rouleau <crouleau@chromium.org>
Reviewed-by: John Budorick <jbudorick@chromium.org>
Cr-Commit-Position: refs/heads/master@{#659755}

docs/speed/perf_lab_platforms.md

@@ -6,7 +6,6 @@
 
 ## Android
 
- * [android-builder-perf](https://ci.chromium.org/p/chrome/builders/luci.chrome.ci/android-builder-perf): Static analysis of 32-bit ARM Android build products.
  * [android-go-perf](https://ci.chromium.org/p/chrome/builders/luci.chrome.ci/android-go-perf): Android O (gobo).
  * [android-go_webview-perf](https://ci.chromium.org/p/chrome/builders/luci.chrome.ci/android-go_webview-perf): Android OPM1.171019.021 (gobo).
  * [Android Nexus5 Perf](https://ci.chromium.org/p/chrome/builders/luci.chrome.ci/Android%20Nexus5%20Perf): Android KOT49H.
@@ -14,10 +13,6 @@
  * [Android Nexus5X WebView Perf](https://ci.chromium.org/p/chrome/builders/luci.chrome.ci/Android%20Nexus5X%20WebView%20Perf): Android AOSP MOB30K.
  * [Android Nexus6 WebView Perf](https://ci.chromium.org/p/chrome/builders/luci.chrome.ci/Android%20Nexus6%20WebView%20Perf): Android AOSP MOB30K.
 
-## Android_Arm64
-
- * [android_arm64-builder-perf](https://ci.chromium.org/p/chrome/builders/luci.chrome.ci/android_arm64-builder-perf): Static analysis of 64-bit ARM Android build products..
-
 ## Linux
 
  * [linux-perf](https://ci.chromium.org/p/chrome/builders/luci.chrome.ci/linux-perf): Ubuntu-14.04, 8 core, NVIDIA Quadro P400.

tools/perf/core/bot_platforms.py

@@ -143,16 +143,6 @@ WIN_7_GPU = PerfPlatform(
     num_shards=5)
 
 # Android
-ANDROID_ARM_BUILDER = PerfPlatform(
-    'android-builder-perf',
-    'Static analysis of 32-bit ARM Android build products',
-    _OFFICIAL_BENCHMARK_NAMES, num_shards=1)
-
-ANDROID_ARM64_BUILDER = PerfPlatform(
-    'android_arm64-builder-perf',
-    'Static analysis of 64-bit ARM Android build products.',
-    _OFFICIAL_BENCHMARK_NAMES, num_shards=1)
-
 ANDROID_GO = PerfPlatform(
     'android-go-perf', 'Android O (gobo)', _ANDROID_GO_BENCHMARK_NAMES,
     num_shards=19)

tools/perf/core/perf_json_config_validator.py

@@ -137,11 +137,6 @@ def _IsBuilderName(name):
   return not name.startswith('AAA')
 
 
-def _IsCompilingBuilder(builder_name, builder_data):
-  del builder_name  # unused
-  return 'isolated_scripts' not in builder_data
-
-
 def _IsTestingBuilder(builder_name, builder_data):
   del builder_name  # unused
   return 'isolated_scripts' in builder_data
@@ -153,13 +148,15 @@ def ValidatePerfConfigFile(file_handle, is_main_perf_waterfall):
   for key, value in perf_data.iteritems():
     if not _IsBuilderName(key):
       continue
-    if _IsCompilingBuilder(builder_name=key, builder_data=value):
-      pass
-    elif _IsTestingBuilder(builder_name=key, builder_data=value):
+    if _IsTestingBuilder(builder_name=key, builder_data=value):
       ValidateTestingBuilder(builder_name=key, builder_data=value)
-      perf_testing_builder_names.add(key)
-    else:
-      raise ValueError('%s has unrecognizable type: %s' % key)
+      try:
+        trigger_script = value['isolated_scripts'][-1]['trigger_script'][
+            'script']
+      except KeyError:
+        continue
+      if trigger_script ==  '//testing/trigger_scripts/perf_device_trigger.py':
+        perf_testing_builder_names.add(key)
   if (is_main_perf_waterfall and
       perf_testing_builder_names != bot_platforms.OFFICIAL_PLATFORM_NAMES):
     raise ValueError(