Revert of Remove create/delete methods from WebGraphicsContext3D.

third_party/WebKit/Source/platform/graphics/Canvas2DLayerBridge.cpp

 /*
  * Copyright (C) 2012 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
  * 2.  Redistributions in binary form must reproduce the above copyright
@@ skipping 240 matching lines @@
         m_imageInfoCache.removeLast();
         return info;
     }
 
     WebGraphicsContext3D* webContext = context();
     gpu::gles2::GLES2Interface* gl = contextGL();
     GLuint imageId = gl->CreateGpuMemoryBufferImageCHROMIUM(m_size.width(), m_size.height(), GL_BGRA_EXT, GC3D_SCANOUT_CHROMIUM);
     if (!imageId)
         return Canvas2DLayerBridge::ImageInfo();
 
-    GLuint textureId;
-    gl->GenTextures(1, &textureId);
+    GLuint textureId= webContext->createTexture();
+    if (!textureId) {
+        gl->DestroyImageCHROMIUM(imageId);
+        return Canvas2DLayerBridge::ImageInfo();
+    }
+
     GLenum target = GC3D_TEXTURE_RECTANGLE_ARB;
     gl->BindTexture(target, textureId);
     gl->TexParameteri(target, GL_TEXTURE_MAG_FILTER, getGLFilter());
     gl->TexParameteri(target, GL_TEXTURE_MIN_FILTER, getGLFilter());
     gl->TexParameteri(target, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
     gl->TexParameteri(target, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
     gl->BindTexImage2DCHROMIUM(target, imageId);
 
     return Canvas2DLayerBridge::ImageInfo(imageId, textureId);
 }
 
 void Canvas2DLayerBridge::deleteCHROMIUMImage(ImageInfo info)
 {
     WebGraphicsContext3D* webContext = context();
     gpu::gles2::GLES2Interface* gl = contextGL();
     if (gl->GetGraphicsResetStatusKHR() != GL_NO_ERROR)
         return;
 
     GLenum target = GC3D_TEXTURE_RECTANGLE_ARB;
     gl->BindTexture(target, info.m_textureId);
     gl->ReleaseTexImage2DCHROMIUM(target, info.m_imageId);
     gl->DestroyImageCHROMIUM(info.m_imageId);
-    gl->DeleteTextures(1, &info.m_textureId);
+    webContext->deleteTexture(info.m_textureId);
     gl->BindTexture(target, 0);
 
     resetSkiaTextureBinding();
 }
 
 void Canvas2DLayerBridge::clearCHROMIUMImageCache()
 {
     for (const auto& it : m_imageInfoCache) {
         deleteCHROMIUMImage(it);
     }
@@ skipping 707 matching lines @@
 #endif // USE_IOSURFACE_FOR_2D_CANVAS
 }
 
 void Canvas2DLayerBridge::Logger::reportHibernationEvent(HibernationEvent event)
 {
     DEFINE_STATIC_LOCAL(EnumerationHistogram, hibernationHistogram, ("Canvas.HibernationEvents", HibernationEventCount));
     hibernationHistogram.count(event);
 }
 
 } // namespace blink