[Android] Switch KillAll, StartActivity, and BroadcastIntent to DeviceUtils.

build/android/pylib/android_commands.py

Index: build/android/pylib/android_commands.py
diff --git a/build/android/pylib/android_commands.py b/build/android/pylib/android_commands.py
index 32121432480103f0e071d4488825ebb6b2fc9011..0d3ead75cec723b6e8b0896b5f529ce228d761ae 100644
--- a/build/android/pylib/android_commands.py
+++ b/build/android/pylib/android_commands.py
@@ -758,7 +758,7 @@ class AndroidCommands(object):
       lines = lines[:-1] + [last_line[:status_pos]]
     return (status, lines)
 
-  def KillAll(self, process, signum=9, with_su=False):
+  def KillAll(self, process, signum=signal.SIGKILL, with_su=False):
     """Android version of killall, connected via adb.
 
     Args:
@@ -778,7 +778,8 @@ class AndroidCommands(object):
         self.RunShellCommand(cmd)
     return len(pids)
 
-  def KillAllBlocking(self, process, timeout_sec):
+  def KillAllBlocking(self, process, timeout_sec, signum=signal.SIGKILL,
+                      with_su=False):
     """Blocking version of killall, connected via adb.
 
     This waits until no process matching the corresponding name appears in ps'
@@ -787,11 +788,12 @@ class AndroidCommands(object):
     Args:
       process: name of the process to kill off
       timeout_sec: the timeout in seconds
-
+      signum: same as |KillAll|
+      with_su: same as |KillAll|
     Returns:
       the number of processes killed
     """
-    processes_killed = self.KillAll(process)
+    processes_killed = self.KillAll(process, signum=signum, with_su=with_su)
     if processes_killed:
       elapsed = 0
       wait_period = 0.1