Bug 1001063 - Add Assert class for debug assertions in Java code r=blassey

mobile/android/base/AppConstants.java.in

@@ -157,4 +157,11 @@ public class AppConstants {
 #else
     false;
 #endif
+
+    public static final boolean DEBUG_BUILD =
+#ifdef MOZ_DEBUG
+    true;
+#else
+    false;
+#endif
 }

mobile/android/base/Assert.java

@@ -0,0 +1,41 @@
+package org.mozilla.gecko;
+
+public class Assert
+{
+    private Assert() {}
+
+    public static void equals(Object a, Object b)
+    {
+        equals(a, b, null);
+    }
+
+    public static void equals(Object a, Object b, String message)
+    {
+        Assert.isTrue(a.equals(b), message);
+    }
+
+    public static void isTrue(boolean a)
+    {
+        isTrue(a, null);
+    }
+
+    public static void isTrue(boolean a, String message)
+    {
+        if (!AppConstants.DEBUG_BUILD) {
+            return;
+        }
+
+        if (!a) {
+            throw new AssertException(message);
+        }
+    }
+
+    public static class AssertException extends RuntimeException
+    {
+        private static final long serialVersionUID = 0L;
+
+        public AssertException(String message) {
+            super(message);
+        }
+    }
+}

mobile/android/base/Makefile.in

@@ -40,6 +40,7 @@ DEFINES += \
   -DMOZ_APP_BUILDID=$(MOZ_APP_BUILDID) \
   -DMOZ_BUILD_TIMESTAMP=$(MOZ_BUILD_TIMESTAMP) \
   -DUA_BUILDID=$(UA_BUILDID) \
+  -DMOZ_DEBUG=$(MOZ_DEBUG) \
   $(NULL)
 
 GARBAGE += \

mobile/android/base/moz.build

@@ -116,6 +116,7 @@ gbjar.sources += [
     'animation/ViewHelper.java',
     'ANRReporter.java',
     'AppNotificationClient.java',
+    'Assert.java',
     'BaseGeckoInterface.java',
     'BrowserApp.java',
     'BrowserLocaleManager.java',