am e57ff0e1: Merge change 6652 into donut

Merge commit 'e57ff0e1db46559699e4fadfbe9abe67ef9472fe'

* commit 'e57ff0e1db46559699e4fadfbe9abe67ef9472fe':
  Call clearCache on WebView before collecting memory information.

tests/DumpRenderTree/src/com/android/dumprendertree/LoadTestsAutoTest.java

@@ -72,6 +72,7 @@ public class LoadTestsAutoTest extends ActivityInstrumentationTestCase2<TestShel
         // Run tests
         runTestAndWaitUntilDone(activity, runner.mTestPath, runner.mTimeoutInMillis);
 
+        activity.clearCache();
         dumpMemoryInfo();
 
         // Kill activity

tests/DumpRenderTree/src/com/android/dumprendertree/TestShellActivity.java

@@ -90,6 +90,10 @@ public class TestShellActivity extends Activity implements LayoutTestController
         }
     }
 
+    public void clearCache() {
+      mWebView.clearCache(true);
+    }
+
     @Override
     protected void onCreate(Bundle icicle) {
         super.onCreate(icicle);