Remove warning DCHECK from GPU Image Decode Controller

cc/tiles/gpu_image_decode_controller.cc

 // Copyright 2016 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 "cc/tiles/gpu_image_decode_controller.h"
 
 #include <inttypes.h>
 
 #include "base/debug/alias.h"
 #include "base/memory/discardable_memory_allocator.h"
@@ skipping 955 matching lines @@
         // no need to special case that as an optimization.
         if (!draw_image.image()->scalePixels(
                 image_pixmap, CalculateUploadScaleFilterQuality(draw_image),
                 SkImage::kDisallow_CachingHint)) {
           backing_memory->Unlock();
           backing_memory.reset();
         }
         break;
       }
       case DecodedDataMode::GPU: {
-        // Params should not have changed since initial sizing.
-        DCHECK(image_data->upload_params.fMatrix == draw_image.matrix());
-        DCHECK_EQ(image_data->upload_params.fPreScaleMipLevel,
-                  CalculateUploadScaleMipLevel(draw_image));
-        DCHECK_EQ(image_data->upload_params.fQuality,
-                  CalculateUploadScaleFilterQuality(draw_image));
+        // TODO(crbug.com/649167): Params should not have changed since initial
+        // sizing. Somehow this still happens. We should investigate and re-add
+        // DCHECKs here to enforce this.
 
         if (!draw_image.image()->getDeferredTextureImageData(
                 *context_threadsafe_proxy_.get(), &image_data->upload_params, 1,
                 backing_memory->data())) {
           backing_memory->Unlock();
           backing_memory.reset();
         }
         break;
       }
     }
@@ skipping 195 matching lines @@
       // TODO(tasak): free this component's caches as much as possible before
       // suspending renderer.
       break;
     case base::MemoryState::UNKNOWN:
       // NOT_REACHED.
       break;
   }
 }
 
 }  // namespace cc