gpu: Upgrade to new ANGLE Platform Display init.

ui/gl/gl_bindings.cc

Index: ui/gl/gl_bindings.cc
diff --git a/ui/gl/gl_bindings.cc b/ui/gl/gl_bindings.cc
index 83b6b594e2dbbd2d967e6f551f173b7422f9983c..c576db8e14d6433ab34798add0a33bde98c2462c 100644
--- a/ui/gl/gl_bindings.cc
+++ b/ui/gl/gl_bindings.cc
@@ -41,15 +41,10 @@ std::string DriverWGL::GetPlatformExtensions() {
 
 #if defined(OS_WIN) || defined(USE_X11) || defined(OS_ANDROID) || defined(USE_OZONE)
 std::string DriverEGL::GetPlatformExtensions() {
-  EGLDisplay display =
-#if defined(OS_WIN)
-    GLSurfaceEGL::GetPlatformDisplay(GetPlatformDefaultEGLNativeDisplay());
-#else
-    g_driver_egl.fn.eglGetDisplayFn(GetPlatformDefaultEGLNativeDisplay());
-#endif
+  EGLDisplay display = GLSurfaceEGL::InitializeDisplay();
+  if (display == EGL_NO_DISPLAY)
+    return "";
 
-  DCHECK(g_driver_egl.fn.eglInitializeFn);
-  g_driver_egl.fn.eglInitializeFn(display, NULL, NULL);
   DCHECK(g_driver_egl.fn.eglQueryStringFn);
   const char* str = g_driver_egl.fn.eglQueryStringFn(display, EGL_EXTENSIONS);
   return str ? std::string(str) : "";
@@ -57,6 +52,7 @@ std::string DriverEGL::GetPlatformExtensions() {
 
 // static
 std::string DriverEGL::GetClientExtensions() {
+  DCHECK(g_driver_egl.fn.eglQueryStringFn);
   const char* str =
       g_driver_egl.fn.eglQueryStringFn(EGL_NO_DISPLAY, EGL_EXTENSIONS);
   return str ? std::string(str) : "";