Telemetry: extends Platform abstraction.

tools/telemetry/telemetry/android_browser_finder.py

Index: tools/telemetry/telemetry/android_browser_finder.py
diff --git a/tools/telemetry/telemetry/android_browser_finder.py b/tools/telemetry/telemetry/android_browser_finder.py
index 01e28e010c0075b78cdd73154f517670352e1e73..7f21cdc752e7098b264ebec8e3f00fc12a9327ce 100644
--- a/tools/telemetry/telemetry/android_browser_finder.py
+++ b/tools/telemetry/telemetry/android_browser_finder.py
@@ -10,8 +10,9 @@ import subprocess
 
 from telemetry import adb_commands
 from telemetry import android_browser_backend
-from telemetry import android_platform
+from telemetry import android_platform_backend
 from telemetry import browser
+from telemetry import platform
 from telemetry import possible_browser
 
 ALL_BROWSER_TYPES = ','.join([
@@ -53,10 +54,10 @@ class PossibleAndroidBrowser(possible_browser.PossibleBrowser):
   def Create(self):
     backend = android_browser_backend.AndroidBrowserBackend(
         self._options, *self._args)
-    platform = android_platform.AndroidPlatform(
+    platform_backend = android_platform_backend.AndroidPlatformBackend(
         self._args[0].Adb(), self._args[1],
         self._args[1] + self._args[4])
-    b = browser.Browser(backend, platform)
+    b = browser.Browser(backend, platform.Platform(platform_backend))
     backend.SetBrowser(b)
     return b