Be explicit about namespace testing to not mix it with blink::testing

third_party/WebKit/Source/core/paint/PaintControllerPaintTest.h

Index: third_party/WebKit/Source/core/paint/PaintControllerPaintTest.h
diff --git a/third_party/WebKit/Source/core/paint/PaintControllerPaintTest.h b/third_party/WebKit/Source/core/paint/PaintControllerPaintTest.h
index 32ef4536b51ab25e2e673a52796906470bf3d87b..f7dde2a8e7b92d640e5b939a97b7c652daec0b87 100644
--- a/third_party/WebKit/Source/core/paint/PaintControllerPaintTest.h
+++ b/third_party/WebKit/Source/core/paint/PaintControllerPaintTest.h
@@ -96,7 +96,7 @@ class PaintControllerPaintTest : public PaintControllerPaintTestBase {
 
 class PaintControllerPaintTestForSlimmingPaintV2
     : public PaintControllerPaintTestBase,
-      public testing::WithParamInterface<bool>,
+      public ::testing::WithParamInterface<bool>,
       private ScopedRootLayerScrollingForTest {
  public:
   PaintControllerPaintTestForSlimmingPaintV2()
@@ -106,7 +106,7 @@ class PaintControllerPaintTestForSlimmingPaintV2
 
 class PaintControllerPaintTestForSlimmingPaintV1AndV2
     : public PaintControllerPaintTestBase,
-      public testing::WithParamInterface<bool> {
+      public ::testing::WithParamInterface<bool> {
  public:
   PaintControllerPaintTestForSlimmingPaintV1AndV2()
       : PaintControllerPaintTestBase(GetParam()) {}