Pull cacheinvalidations code directory into chromium repo.

third_party/cacheinvalidation/src/example-app-build/proguard.cfg

+#
+# This file was derived from the Android SDK default configuration in tools/lib/proguard.cfg,
+# with changes/additions explicitly commented where made
+#
+-optimizationpasses 5
+-dontusemixedcaseclassnames
+-dontskipnonpubliclibraryclasses
+-dontpreverify
+# Change: SDK defaults + code/allocation/variable required to disable proguard optimization bug
+-verbose
+-optimizations !code/simplification/arithmetic,!field/*,!class/merging/*,!code/allocation/variable
+
+-keep public class * extends android.app.Activity
+-keep public class * extends android.app.Application
+-keep public class * extends android.app.Service
+-keep public class * extends android.content.BroadcastReceiver
+-keep public class * extends android.content.ContentProvider
+-keep public class * extends android.app.backup.BackupAgentHelper
+-keep public class * extends android.preference.Preference
+# Change: not needed
+#-keep public class com.android.vending.licensing.ILicensingService
+
+-keepclasseswithmembernames class * {
+    native <methods>;
+}
+
+-keepclasseswithmembers class * {
+    public <init>(android.content.Context, android.util.AttributeSet);
+}
+
+-keepclasseswithmembers class * {
+    public <init>(android.content.Context, android.util.AttributeSet, int);
+}
+
+-keepclassmembers class * extends android.app.Activity {
+   public void *(android.view.View);
+}
+
+-keepclassmembers enum * {
+    public static **[] values();
+    public static ** valueOf(java.lang.String);
+}
+
+-keep class * implements android.os.Parcelable {
+  public static final android.os.Parcelable$Creator *;
+}
+
+#
+# All changes below are additions to the Android SDK defaults, generally for the purposes of
+# suppressing spurious or inconsequential warnings.
+#
+
+# Suppress duplicate warning for system classes;  Blaze is passing android.jar
+# to proguard multiple times.
+-dontnote android.**
+-dontnote java.**
+-dontnote javax.**
+-dontnote junit.**
+-dontnote org.**
+-dontnote dalvik.**
+-dontnote com.android.internal.**
+
+# Stop warnings about missing unused classes
+-dontwarn com.google.common.annotations.**
+-dontwarn com.google.common.base.**
+-dontwarn com.google.common.collect.**
+-dontnote com.google.common.flags.**
+-dontwarn com.google.common.flags.**
+-dontwarn com.google.common.util.concurrent.**
+
+# Ignore missing JDK6 classes
+-dontwarn java.**
+
+# Inverting these produces significant size gains but loses significant debug info
+-dontobfuscate
+#-flattenpackagehierarchy