Fix crashes when loading gles2.cc on browser startup, and during playback.

content/common/gpu/media/gles2_texture_to_egl_image_translator.cc

 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "content/common/gpu/media/gles2_texture_to_egl_image_translator.h"
 
 #include "base/logging.h"
 
 // Get EGL extension functions.
 static PFNEGLCREATEIMAGEKHRPROC egl_create_image_khr =
     reinterpret_cast<PFNEGLCREATEIMAGEKHRPROC>(
         eglGetProcAddress("eglCreateImageKHR"));
 static PFNEGLDESTROYIMAGEKHRPROC egl_destroy_image_khr =
     reinterpret_cast<PFNEGLDESTROYIMAGEKHRPROC>(
         eglGetProcAddress("eglDestroyImageKHR"));
 
 static bool AreEGLExtensionsInitialized() {
   return (egl_create_image_khr && egl_destroy_image_khr);
 }
 
 Gles2TextureToEglImageTranslator::Gles2TextureToEglImageTranslator() {
   if (!AreEGLExtensionsInitialized()) {
     LOG(DFATAL) << "Failed to get EGL extensions";
     return;
   }
+  CHECK_EQ(eglGetError(), EGL_SUCCESS);
 }
 
 
 Gles2TextureToEglImageTranslator::~Gles2TextureToEglImageTranslator() {
 }
 
 EGLImageKHR Gles2TextureToEglImageTranslator::TranslateToEglImage(
     EGLDisplay egl_display, EGLContext egl_context, uint32 texture) {
   EGLint attrib = EGL_NONE;
   if (!egl_create_image_khr)
     return EGL_NO_IMAGE_KHR;
   // Create an EGLImage
   EGLImageKHR hEglImage = egl_create_image_khr(
       egl_display,
       egl_context,
       EGL_GL_TEXTURE_2D_KHR,
       reinterpret_cast<EGLClientBuffer>(texture),
       &attrib);
-  CHECK(hEglImage);
+  CHECK(hEglImage) << eglGetError();
   return hEglImage;
 }
 
 uint32 Gles2TextureToEglImageTranslator::TranslateToTexture(
     EGLImageKHR egl_image) {
   // TODO(vhiremath@nvidia.com)
   // Fill in the appropriate implementation.
   GLuint texture = 0;
   NOTIMPLEMENTED();
   return texture;
 }
 
 void Gles2TextureToEglImageTranslator::DestroyEglImage(
     EGLDisplay egl_display, EGLImageKHR egl_image) {
   // Clients of this class will call this method for each EGLImage handle.
   // Actual destroying of the handles is done here.
   if (!egl_destroy_image_khr) {
     LOG(ERROR) << "egl_destroy_image_khr failed";
     return;
   }
   egl_destroy_image_khr(egl_display, egl_image);
 }