Dim the window when URL is being edited.

Change-Id: Ib10a61413074baa095f264138567b4112e31abb6
diff --git a/src/com/android/browser/NavigationBarPhone.java b/src/com/android/browser/NavigationBarPhone.java
index 796320a..076e4ad 100644
--- a/src/com/android/browser/NavigationBarPhone.java
+++ b/src/com/android/browser/NavigationBarPhone.java
@@ -228,6 +228,9 @@
             mTabSwitcher.setVisibility(View.VISIBLE);
             mTitleContainer.setBackgroundDrawable(null);
             mMore.setVisibility(mNeedsMenu ? View.VISIBLE : View.GONE);
+            if (mUiController != null) {
+                mUiController.setWindowDimming(0f);
+            }
             break;
         case StateListener.STATE_HIGHLIGHTED:
             mComboIcon.setVisibility(View.GONE);
@@ -240,11 +243,16 @@
             mTabSwitcher.setVisibility(View.GONE);
             mMore.setVisibility(View.GONE);
             mTitleContainer.setBackgroundDrawable(mTextfieldBgDrawable);
+
             if (!mUrlInput.getText().toString().equals(mUrlInput.getTag())) {
                 // only change text if different
                 mUrlInput.setText((String) mUrlInput.getTag(), false);
                 mUrlInput.selectAll();
             }
+
+            if (mUiController != null) {
+                mUiController.setWindowDimming(0.75f);
+            }
             break;
         case StateListener.STATE_EDITED:
             mComboIcon.setVisibility(View.GONE);