Completely removed the Extensions3D class (Take 2)

Source/web/WebMediaPlayerClientImpl.cpp

Index: Source/web/WebMediaPlayerClientImpl.cpp
diff --git a/Source/web/WebMediaPlayerClientImpl.cpp b/Source/web/WebMediaPlayerClientImpl.cpp
index b6647ab54be548e0449b500a8efa795807ffb2b1..8e29cda8730ec5538cdefac1d3d6aab31d93e230 100644
--- a/Source/web/WebMediaPlayerClientImpl.cpp
+++ b/Source/web/WebMediaPlayerClientImpl.cpp
@@ -470,9 +470,8 @@ bool WebMediaPlayerClientImpl::copyVideoTextureToPlatformTexture(WebCore::Graphi
 {
     if (!context || !m_webMediaPlayer)
         return false;
-    Extensions3D* extensions = context->extensions();
-    if (!extensions || !extensions->supports("GL_CHROMIUM_copy_texture") || !extensions->supports("GL_CHROMIUM_flipy")
-        || !extensions->canUseCopyTextureCHROMIUM(internalFormat, type, level) || !context->makeContextCurrent())
+    if (!context->supportsExtension("GL_CHROMIUM_copy_texture") || !context->supportsExtension("GL_CHROMIUM_flipy")
+        || !context->canUseCopyTextureCHROMIUM(internalFormat, type, level) || !context->makeContextCurrent())
         return false;
     WebGraphicsContext3D* webGraphicsContext3D = context->webContext();
     return m_webMediaPlayer->copyVideoTextureToPlatformTexture(webGraphicsContext3D, texture, level, internalFormat, type, premultiplyAlpha, flipY);
@@ -568,8 +567,7 @@ void WebMediaPlayerClientImpl::paintOnAndroid(WebCore::GraphicsContext* context,
     if (!context || !context3D || !m_webMediaPlayer || context->paintingDisabled())
         return;
 
-    Extensions3D* extensions = context3D->extensions();
-    if (!extensions || !extensions->supports("GL_CHROMIUM_copy_texture") || !extensions->supports("GL_CHROMIUM_flipy")
+    if (!context3D->supportsExtension("GL_CHROMIUM_copy_texture") || !context3D->supportsExtension("GL_CHROMIUM_flipy")
         || !context3D->makeContextCurrent())
         return;