[Android] Upstream android lint script and run it on debug builders.

build/android/buildbot/bb_run_bot.py

Index: build/android/buildbot/bb_run_bot.py
diff --git a/build/android/buildbot/bb_run_bot.py b/build/android/buildbot/bb_run_bot.py
index c729ca2d5f87a0ab5243b24b3ea8b6533ae200a0..03a1d3855036d13c61b9af43e60ffda335dffdb4 100755
--- a/build/android/buildbot/bb_run_bot.py
+++ b/build/android/buildbot/bb_run_bot.py
@@ -115,7 +115,7 @@ def GetCommands(options, bot_config):
 
 def GetBotStepMap():
   compile_step = ['compile']
-  std_host_tests = ['check_webview_licenses', 'findbugs']
+  std_host_tests = ['check_webview_licenses', 'findbugs', 'lint']
   std_build_steps = ['compile', 'zip_build']
   std_test_steps = ['extract_build']
   std_tests = ['ui', 'unit']
@@ -133,10 +133,11 @@ def GetBotStepMap():
 
   bot_configs = [
       # Main builders
-      B('main-builder-dbg', H(std_build_steps + std_host_tests)),
+      B('main-builder-dbg', H(std_build_steps)),
       B('main-builder-rel', H(std_build_steps)),
       B('main-clang-builder',
-        H(compile_step, extra_gyp='clang=1 component=shared_library')),
+        H(compile_step + std_host_tests,
+          extra_gyp='clang=1 component=shared_library')),
       B('main-clobber', H(compile_step)),
       B('main-tests', H(std_test_steps), T(std_tests, [flakiness_server])),
 
@@ -147,12 +148,12 @@ def GetBotStepMap():
       B('chromedriver-fyi-tests-dbg', H(std_test_steps),
         T(['chromedriver'], ['--install=ChromiumTestShell'])),
       B('fyi-x86-builder-dbg',
-        H(compile_step + std_host_tests, experimental, target_arch='x86')),
+        H(compile_step, experimental, target_arch='x86')),
       B('fyi-builder-dbg',
-        H(std_build_steps + std_host_tests, experimental,
+        H(std_build_steps, experimental,
           extra_gyp='emma_coverage=1')),
       B('x86-builder-dbg',
-        H(compile_step + std_host_tests, target_arch='x86')),
+        H(compile_step, target_arch='x86')),
       B('fyi-builder-rel', H(std_build_steps,  experimental)),
       B('fyi-tests', H(std_test_steps),
         T(std_tests, ['--experimental', flakiness_server,