android: Limit num renderer to service slots

content/browser/child_process_launcher_helper.h

Index: content/browser/child_process_launcher_helper.h
diff --git a/content/browser/child_process_launcher_helper.h b/content/browser/child_process_launcher_helper.h
index 63dfdc0829302dcad4db376917ccc6f65c2bb30c..6c8ed7dcc21f5825645a15b1a2b1d7016c1fb2b1 100644
--- a/content/browser/child_process_launcher_helper.h
+++ b/content/browser/child_process_launcher_helper.h
@@ -170,6 +170,7 @@ class ChildProcessLauncherHelper :
   void OnChildProcessStarted(JNIEnv* env,
                              const base::android::JavaParamRef<jobject>& obj,
                              jint handle);
+  static size_t GetNumberOfRendererSlots();

[Jay Civelli, 2017/04/03 16:19:48]

I am starting to get weary of adding more stuff in ifdef's here.
I tried hard when I refactored this to get rid of almost all of them.
I am OK with this one for now. My plan is at some point to revisit this ifdef
block and remove it entirely from here.

[boliu, 2017/04/03 16:33:03]

I suppose this doesn't have to go through CPL. RPHI can directly call into some
java thing. But that does involve adding more jni files and whatnot, so I
settled on this. I can add new files if you don't think it's worth it.

[Jay Civelli, 2017/04/03 16:40:50]

That's fine for now.

 #endif  // OS_ANDROID
 
  private: