Implement the texture uploading of ASTC compression for WebGL

content/common/gpu/client/gpu_memory_buffer_impl_shared_memory.cc

 // Copyright 2014 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/client/gpu_memory_buffer_impl_shared_memory.h"
 
 #include "base/bind.h"
 #include "base/numerics/safe_math.h"
 #include "ui/gl/gl_bindings.h"
 
@@ skipping 78 matching lines @@
           handle.id,
           size,
           format,
           callback,
           shared_memory.Pass()));
 }
 
 // static
 bool GpuMemoryBufferImplSharedMemory::IsFormatSupported(Format format) {
   switch (format) {
+    case ASTC:
     case ATC:
     case ATCIA:
     case DXT1:
     case DXT5:
     case ETC1:
     case R_8:
     case RGBA_4444:
     case RGBA_8888:
     case BGRA_8888:
     case YUV_420:
@@ skipping 17 matching lines @@
   }
   NOTREACHED();
   return false;
 }
 
 // static
 bool GpuMemoryBufferImplSharedMemory::IsSizeValidForFormat(
     const gfx::Size& size,
     Format format) {
   switch (format) {
+    case ASTC:
     case ATC:
     case ATCIA:
     case DXT1:
     case DXT5:
     case ETC1:
       // Compressed images must have a width and height that's evenly divisible
       // by the block size.
       return size.width() % 4 == 0 && size.height() % 4 == 0;
     case R_8:
     case RGBA_4444:
@@ skipping 51 matching lines @@
 
 gfx::GpuMemoryBufferHandle GpuMemoryBufferImplSharedMemory::GetHandle() const {
   gfx::GpuMemoryBufferHandle handle;
   handle.type = gfx::SHARED_MEMORY_BUFFER;
   handle.id = id_;
   handle.handle = shared_memory_->handle();
   return handle;
 }
 
 }  // namespace content