Adding monotonic only API to Blink's animation delegate interface

public/platform/WebAnimationDelegate.h

Index: public/platform/WebAnimationDelegate.h
diff --git a/public/platform/WebAnimationDelegate.h b/public/platform/WebAnimationDelegate.h
index e233e5db69bf11b7f16f433d82d7eb5651dd1458..940f1434db7394804f8d2233d27354fb2b71721b 100644
--- a/public/platform/WebAnimationDelegate.h
+++ b/public/platform/WebAnimationDelegate.h
@@ -26,17 +26,26 @@
 #define WebAnimationDelegate_h
 
 #include "WebAnimation.h"
+#include "WebCommon.h"
 
 #define WEB_ANIMATION_DELEGATE_TAKES_MONOTONIC_TIME 1
 
 namespace blink {
 
-class WebAnimationDelegate {
+class BLINK_PLATFORM_EXPORT WebAnimationDelegate {
 public:
-    // FIXME: Remove wallClockTime once the legacy implementation of CSS
-    // animations and transitions is removed.
-    virtual void notifyAnimationStarted(double wallClockTime, double monotonicTime, WebAnimation::TargetProperty) = 0;
-    virtual void notifyAnimationFinished(double wallClockTime, double monotonicTime, WebAnimation::TargetProperty) = 0;
+    // FIXME: Remove wallClockTime API after the following file is updated;
+    // webkit/renderer/compositor_bindings/web_to_cc_animation_delegate_adapter.cc
+    void notifyAnimationStarted(double wallClockTime, double monotonicTime, WebAnimation::TargetProperty prop)
+    {
+        notifyAnimationStarted(monotonicTime, prop);
+    }
+    void notifyAnimationFinished(double wallClockTime, double monotonicTime, WebAnimation::TargetProperty prop)
+    {
+        notifyAnimationFinished(monotonicTime, prop);
+    }
+    virtual void notifyAnimationStarted(double monotonicTime, WebAnimation::TargetProperty) = 0;
+    virtual void notifyAnimationFinished(double monotonicTime, WebAnimation::TargetProperty) = 0;
 };
 
 } // namespace blink