Don't crash on makeCurrent fail

Bug: 22444755

WindowManager may decide to yank the surface at any point, so
attempt to kinda handle this

Change-Id: Id2f665d2f0f93bccd4ec977fbf52dca4dc1ec891
diff --git a/libs/hwui/renderthread/EglManager.h b/libs/hwui/renderthread/EglManager.h
index 8881de6..0a8cfd3 100644
--- a/libs/hwui/renderthread/EglManager.h
+++ b/libs/hwui/renderthread/EglManager.h
@@ -44,7 +44,7 @@
 
     bool isCurrent(EGLSurface surface) { return mCurrentSurface == surface; }
     // Returns true if the current surface changed, false if it was already current
-    bool makeCurrent(EGLSurface surface);
+    bool makeCurrent(EGLSurface surface, EGLint* errOut = nullptr);
     void beginFrame(EGLSurface surface, EGLint* width, EGLint* height);
     bool swapBuffers(EGLSurface surface, const SkRect& dirty, EGLint width, EGLint height);