Use ChromeJUnit4ClassRunner for javatests in chrome

chrome/android/javatests/src/org/chromium/chrome/browser/precache/PrecacheUMATest.java

Index: chrome/android/javatests/src/org/chromium/chrome/browser/precache/PrecacheUMATest.java
diff --git a/chrome/android/javatests/src/org/chromium/chrome/browser/precache/PrecacheUMATest.java b/chrome/android/javatests/src/org/chromium/chrome/browser/precache/PrecacheUMATest.java
index 0cbc9c4334c1f8757612b605c922e684d78137b3..e4f7cdf3d05ce55584aa7e18447189e6746291d0 100644
--- a/chrome/android/javatests/src/org/chromium/chrome/browser/precache/PrecacheUMATest.java
+++ b/chrome/android/javatests/src/org/chromium/chrome/browser/precache/PrecacheUMATest.java
@@ -13,10 +13,10 @@ import org.junit.runner.RunWith;
 
 import org.chromium.base.ContextUtils;
 import org.chromium.base.library_loader.LibraryLoader;
-import org.chromium.base.test.BaseJUnit4ClassRunner;
 import org.chromium.base.test.util.Feature;
 import org.chromium.base.test.util.MetricsUtils.HistogramDelta;
 import org.chromium.base.test.util.RetryOnFailure;
+import org.chromium.chrome.test.ChromeJUnit4ClassRunner;
 import org.chromium.content.browser.test.NativeLibraryTestRule;
 
 import java.util.ArrayList;
@@ -26,7 +26,7 @@ import java.util.List;
 /**
  * Tests of {@link PrecacheUMA}.
  */
-@RunWith(BaseJUnit4ClassRunner.class)
+@RunWith(ChromeJUnit4ClassRunner.class)
 public class PrecacheUMATest {
     @Rule
     public NativeLibraryTestRule mActivityTestRule = new NativeLibraryTestRule();