Set pageCacheCapacity, which enables page cache,
for the Browser

http://b/issue?id=2284168
diff --git a/src/com/android/browser/BrowserSettings.java b/src/com/android/browser/BrowserSettings.java
index d7b091f..6f48923 100644
--- a/src/com/android/browser/BrowserSettings.java
+++ b/src/com/android/browser/BrowserSettings.java
@@ -115,6 +115,7 @@
         WebSettings.TextSize.NORMAL;
     private static WebSettings.ZoomDensity zoomDensity =
         WebSettings.ZoomDensity.MEDIUM;
+    private static int pageCacheCapacity = 10;
 
     // Preference keys that are used outside this class
     public final static String PREF_CLEAR_CACHE = "privacy_clear_cache";
@@ -201,6 +202,7 @@
             s.setSaveFormData(b.saveFormData);
             s.setSavePassword(b.rememberPasswords);
             s.setLoadWithOverviewMode(b.loadsPageInOverviewMode);
+            s.setPageCacheCapacity(pageCacheCapacity);
 
             // WebView inside Browser doesn't want initial focus to be set.
             s.setNeedInitialFocus(false);