[Reland] [Android] Set enable_remoting=true by default

We set enable_remoting=true in the command line on the official builders. Set
enable_remoting=true as the default on Chromium as well.

BUG=544298
R=lambroslambrou
TBR=dpranke

Review URL: https://codereview.chromium.org/1635373002

Cr-Commit-Position: refs/heads/master@{#371834}

build/config/features.gni

@@ -75,7 +75,7 @@ declare_args() {
 
   enable_one_click_signin = is_win || is_mac || (is_linux && !is_chromeos)
 
-  enable_remoting = !is_ios && !is_android && !is_chromecast && !is_headless
+  enable_remoting = !is_ios && !is_chromecast && !is_headless
 
   # Enable hole punching for the protected video.
   enable_video_hole = is_android

remoting/android/BUILD.gn

@@ -97,17 +97,19 @@ remoting_android_client_java_tmpl("remoting_android_client_java") {
   remoting_google_play_services_library = google_play_services_library
 }
 
-action("remoting_cardboard_extract_native_lib") {
-  script = "//remoting/tools/extract_android_native_lib.py"
-  sources = [
-    "//third_party/cardboard-java/src/CardboardSample/libs/cardboard.jar",
-  ]
-  outputs = [
-    "$root_out_dir/libvrtoolkit.so",
-  ]
-  args = [ android_app_abi ]
-  args += rebase_path(sources, root_build_dir)
-  args += rebase_path(outputs, root_build_dir)
+if (target_cpu == "arm") {
+  action("remoting_cardboard_extract_native_lib") {
+    script = "//remoting/tools/extract_android_native_lib.py"
+    sources = [
+      "//third_party/cardboard-java/src/CardboardSample/libs/cardboard.jar",
+    ]
+    outputs = [
+      "$root_out_dir/libvrtoolkit.so",
+    ]
+    args = [ android_app_abi ]
+    args += rebase_path(sources, root_build_dir)
+    args += rebase_path(outputs, root_build_dir)
+  }
 }
 
 remoting_apk_tmpl("remoting_apk") {