Remove nullchecks for the provider's context.

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

 /*
  * Copyright (c) 2008, Google Inc. All rights reserved.
  * Copyright (C) 2009 Dirk Schulze <krit@webkit.org>
  * Copyright (C) 2010 Torch Mobile (Beijing) Co. Ltd. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
@@ skipping 185 matching lines @@
     ASSERT(textureImage->isTextureBacked()); // isAccelerated() check above should guarantee this
     // Get the texture ID, flushing pending operations if needed.
     const GrGLTextureInfo* textureInfo = skia::GrBackendObjectToGrGLTextureInfo(textureImage->getTextureHandle(true));
     if (!textureInfo || !textureInfo->fID)
         return false;
 
     OwnPtr<WebGraphicsContext3DProvider> provider = adoptPtr(Platform::current()->createSharedOffscreenGraphicsContext3DProvider());
     if (!provider)
         return false;
     WebGraphicsContext3D* sharedContext = provider->context3d();
-    if (!sharedContext)
-        return false;
 
     OwnPtr<WebExternalTextureMailbox> mailbox = adoptPtr(new WebExternalTextureMailbox);
     mailbox->textureSize = WebSize(textureImage->width(), textureImage->height());
 
     // Contexts may be in a different share group. We must transfer the texture through a mailbox first
     sharedContext->genMailboxCHROMIUM(mailbox->name);
     sharedContext->produceTextureDirectCHROMIUM(textureInfo->fID, textureInfo->fTarget, mailbox->name);
     const WGC3Duint64 sharedFenceSync = sharedContext->insertFenceSyncCHROMIUM();
     sharedContext->flush();
 
@@ skipping 24 matching lines @@
 }
 
 bool ImageBuffer::copyRenderingResultsFromDrawingBuffer(DrawingBuffer* drawingBuffer, SourceDrawingBuffer sourceBuffer)
 {
     if (!drawingBuffer || !m_surface->isAccelerated())
         return false;
     OwnPtr<WebGraphicsContext3DProvider> provider = adoptPtr(Platform::current()->createSharedOffscreenGraphicsContext3DProvider());
     if (!provider)
         return false;
     WebGraphicsContext3D* context3D = provider->context3d();
-    if (!context3D)
-        return false;
     Platform3DObject textureId = m_surface->getBackingTextureHandleForOverwrite();
     if (!textureId)
         return false;
 
     context3D->flush();
 
     return drawingBuffer->copyToPlatformTexture(context3D, textureId, GL_RGBA,
         GL_UNSIGNED_BYTE, 0, true, false, sourceBuffer);
 }
 
@@ skipping 142 matching lines @@
     ASSERT(MIMETypeRegistry::isSupportedImageMIMETypeForEncoding(mimeType));
 
     Vector<unsigned char> result;
     if (!encodeImage(mimeType, quality, &result))
         return "data:,";
 
     return "data:" + mimeType + ";base64," + base64Encode(result);
 }
 
 } // namespace blink