Dump GL errors and crash on failure to allocate texture for layer

bug:22029728

Change-Id: Ib6f778975225b36567b12e30967955640ec185b3
diff --git a/libs/hwui/utils/GLUtils.h b/libs/hwui/utils/GLUtils.h
index 890e374..7020461 100644
--- a/libs/hwui/utils/GLUtils.h
+++ b/libs/hwui/utils/GLUtils.h
@@ -20,12 +20,11 @@
 namespace uirenderer {
 
 class GLUtils {
-private:
 public:
     /**
-     * Print out any GL errors with ALOGE
+     * Print out any GL errors with ALOGE, returns true if any errors were found.
      */
-    static void dumpGLErrors();
+    static bool dumpGLErrors();
 
 }; // class GLUtils