Move remaining Blimp feature code to core.

blimp/client/core/contents/android/java/src/org/chromium/blimp/core/contents/BlimpContentsImpl.java

Index: blimp/client/core/contents/android/java/src/org/chromium/blimp/core/contents/BlimpContentsImpl.java
diff --git a/blimp/client/core/contents/android/java/src/org/chromium/blimp/core/contents/BlimpContentsImpl.java b/blimp/client/core/contents/android/java/src/org/chromium/blimp/core/contents/BlimpContentsImpl.java
index f0680690bae2a7f9248b555e5fd5e4940dec0b7d..849a3c9ed6576d45d9605ce17f4eebc97c673a2b 100644
--- a/blimp/client/core/contents/android/java/src/org/chromium/blimp/core/contents/BlimpContentsImpl.java
+++ b/blimp/client/core/contents/android/java/src/org/chromium/blimp/core/contents/BlimpContentsImpl.java
@@ -79,5 +79,19 @@ public class BlimpContentsImpl implements BlimpContents {
         nativeDestroy(mNativeBlimpContentsImplAndroid);
     }
 
+    @Override
+    public void show() {
+        if (mNativeBlimpContentsImplAndroid == 0) return;
+        nativeShow(mNativeBlimpContentsImplAndroid);
+    }
+
+    @Override
+    public void hide() {
+        if (mNativeBlimpContentsImplAndroid == 0) return;
+        nativeHide(mNativeBlimpContentsImplAndroid);
+    }
+
     private native void nativeDestroy(long nativeBlimpContentsImplAndroid);
+    private native void nativeShow(long nativeBlimpContentsImplAndroid);
+    private native void nativeHide(long nativeBlimpContentsImplAndroid);
 }