[Android] Enable multidex for debug builds of ChromePublic.
This is a non-incremental implementation. It adds @MainDex to classes used by
the renderer to keep them in the main dex, as it can't load secondary dexes
when using the multidex support library (i.e., on K and below).
BUG=272790
TBR=newt@chromium.org,sky@chromium.org
Review URL: https://codereview.chromium.org/1408163009
Cr-Commit-Position: refs/heads/master@{#359453}
CrOS-Libchrome-Original-Commit: f667d3b3a1b953800bb5325c7b8d62775a1c5aeb
diff --git a/base/android/java/templates/ChromiumMultiDex.template b/base/android/java/templates/ChromiumMultiDex.template
new file mode 100644
index 0000000..18b3c77
--- /dev/null
+++ b/base/android/java/templates/ChromiumMultiDex.template
@@ -0,0 +1,63 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+package org.chromium.base.multidex;
+
+import android.content.Context;
+import android.os.Build;
+import android.os.Process;
+import android.support.multidex.MultiDex;
+
+import org.chromium.base.Log;
+import org.chromium.base.VisibleForTesting;
+
+import java.lang.reflect.InvocationTargetException;
+
+/**
+ * Performs multidex installation for non-isolated processes.
+ */
+public class ChromiumMultiDex {
+
+ private static final String TAG = "base_multidex";
+
+ /**
+ * Installs secondary dexes if possible.
+ *
+ * Isolated processes (e.g. renderer processes) can't load secondary dex files on
+ * K and below, so we don't even try in that case.
+ *
+ * @param context The application context.
+ */
+ @VisibleForTesting
+#if defined(CONFIGURATION_NAME_Debug)
+ public static void install(Context context) {
+ try {
+ // TODO(jbudorick): Back out this version check once support for K & below works.
+ // http://crbug.com/512357
+ if (Build.VERSION.SDK_INT < Build.VERSION_CODES.LOLLIPOP && processIsIsolated()) {
+ Log.i(TAG, "Skipping multidex installation: inside isolated process.");
+ } else {
+ MultiDex.install(context);
+ Log.i(TAG, "Completed multidex installation.");
+ }
+ } catch (NoSuchMethodException e) {
+ Log.wtf(TAG, "Failed multidex installation", e);
+ } catch (IllegalAccessException e) {
+ Log.wtf(TAG, "Failed multidex installation", e);
+ } catch (InvocationTargetException e) {
+ Log.wtf(TAG, "Failed multidex installation", e);
+ }
+ }
+
+ // Calls Process.isIsolated, a private Android API.
+ private static boolean processIsIsolated()
+ throws NoSuchMethodException, IllegalAccessException, InvocationTargetException {
+ return (boolean) Process.class.getMethod("isIsolated").invoke(null);
+ }
+#else
+ public static void install(Context context) {
+ }
+#endif
+
+}