Don't build the task manager into Android builds.

chrome/browser/renderer_host/chrome_render_message_filter.cc

Index: chrome/browser/renderer_host/chrome_render_message_filter.cc
diff --git a/chrome/browser/renderer_host/chrome_render_message_filter.cc b/chrome/browser/renderer_host/chrome_render_message_filter.cc
index 57050b9b0e38d55c79721a4abba6ccfa6096f1fc..ccf2cc0891eb8689004955c6605cfc531ee6937a 100644
--- a/chrome/browser/renderer_host/chrome_render_message_filter.cc
+++ b/chrome/browser/renderer_host/chrome_render_message_filter.cc
@@ -189,8 +189,10 @@ void ChromeRenderMessageFilter::OnResourceTypeStats(
                    static_cast<int>(stats.fonts.size / 1024));
 
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
+#if defined(ENABLE_TASK_MANAGER)
   TaskManager::GetInstance()->model()->NotifyResourceTypeStats(
       base::GetProcId(peer_handle()), stats);
+#endif  // defined(ENABLE_TASK_MANAGER)
 }
 
 void ChromeRenderMessageFilter::OnUpdatedCacheStats(
@@ -210,8 +212,10 @@ void ChromeRenderMessageFilter::OnFPS(int routing_id, float fps) {
 
   base::ProcessId renderer_id = base::GetProcId(peer_handle());
 
+#if defined(ENABLE_TASK_MANAGER)
   TaskManager::GetInstance()->model()->NotifyFPS(
       renderer_id, routing_id, fps);
+#endif  // defined(ENABLE_TASK_MANAGER)
 
   FPSDetails details(routing_id, fps);
   content::NotificationService::current()->Notify(
@@ -233,10 +237,12 @@ void ChromeRenderMessageFilter::OnV8HeapStats(int v8_memory_allocated,
 
   base::ProcessId renderer_id = base::GetProcId(peer_handle());
 
+#if defined(ENABLE_TASK_MANAGER)
   TaskManager::GetInstance()->model()->NotifyV8HeapStats(
       renderer_id,
       static_cast<size_t>(v8_memory_allocated),
       static_cast<size_t>(v8_memory_used));
+#endif  // defined(ENABLE_TASK_MANAGER)
 
   V8HeapStatsDetails details(v8_memory_allocated, v8_memory_used);
   content::NotificationService::current()->Notify(