Fix createBuffer in Vulkan

src/gpu/vk/GrVkGpu.cpp

 /*
  * Copyright 2015 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "GrVkGpu.h"
 
 #include "GrContextOptions.h"
@@ skipping 162 matching lines @@
 
 ///////////////////////////////////////////////////////////////////////////////
 GrBuffer* GrVkGpu::onCreateBuffer(size_t size, GrBufferType type, GrAccessPattern accessPattern,
                                   const void* data) {
     GrBuffer* buff;
     switch (type) {
         case kVertex_GrBufferType:
             SkASSERT(kDynamic_GrAccessPattern == accessPattern ||
                      kStatic_GrAccessPattern == accessPattern);
             buff = GrVkVertexBuffer::Create(this, size, kDynamic_GrAccessPattern == accessPattern);
+            break;
         case kIndex_GrBufferType:
             SkASSERT(kDynamic_GrAccessPattern == accessPattern ||
                      kStatic_GrAccessPattern == accessPattern);
             buff = GrVkIndexBuffer::Create(this, size, kDynamic_GrAccessPattern == accessPattern);
+            break;
         case kXferCpuToGpu_GrBufferType:
             SkASSERT(kStream_GrAccessPattern == accessPattern);
             buff = GrVkTransferBuffer::Create(this, size, GrVkBuffer::kCopyRead_Type);
+            break;
         case kXferGpuToCpu_GrBufferType:
             SkASSERT(kStream_GrAccessPattern == accessPattern);
             buff = GrVkTransferBuffer::Create(this, size, GrVkBuffer::kCopyWrite_Type);
+            break;
         default:
             SkFAIL("Unknown buffer type.");
             return nullptr;
     }
     if (data && buff) {
         buff->updateData(data, size);
     }
     return buff;
 }
 
@@ skipping 1383 matching lines @@
     aglSwapBuffers(aglGetCurrentContext());
     int set_a_break_pt_here = 9;
     aglSwapBuffers(aglGetCurrentContext());
 #elif defined(SK_BUILD_FOR_WIN32)
     SwapBuf();
     int set_a_break_pt_here = 9;
     SwapBuf();
 #endif
 #endif
 }