[Merge M55] sync compositor: Fix multiprocess software clipping

content/renderer/android/synchronous_compositor_proxy.cc

 // Copyright 2015 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/renderer/android/synchronous_compositor_proxy.h"
 
 #include "base/auto_reset.h"
 #include "base/command_line.h"
 #include "base/memory/shared_memory.h"
 #include "cc/ipc/cc_param_traits.h"
@@ skipping 295 matching lines @@
   SkImageInfo info =
       SkImageInfo::MakeN32Premul(params.size.width(), params.size.height());
   size_t stride = info.minRowBytes();
   size_t buffer_size = info.getSafeSize(stride);
   DCHECK_EQ(software_draw_shm_->buffer_size, buffer_size);
 
   SkBitmap bitmap;
   if (!bitmap.installPixels(info, software_draw_shm_->shm.memory(), stride))
     return;
   SkCanvas canvas(bitmap);
+  canvas.clipRect(gfx::RectToSkRect(params.clip));
   canvas.concat(params.transform.matrix());
-  canvas.clipRect(gfx::RectToSkRect(params.clip));
 
   compositor_frame_sink_->DemandDrawSw(&canvas);
 }
 
 void SynchronousCompositorProxy::SwapBuffersSw(cc::CompositorFrame frame) {
   DCHECK(inside_receive_);
   DCHECK(software_draw_reply_);
   SendDemandDrawSwReply(true, std::move(frame), software_draw_reply_);
   inside_receive_ = false;
 }
@@ skipping 46 matching lines @@
 
 void SynchronousCompositorProxy::SetScroll(
     const gfx::ScrollOffset& new_total_scroll_offset) {
   if (total_scroll_offset_ == new_total_scroll_offset)
     return;
   total_scroll_offset_ = new_total_scroll_offset;
   input_handler_proxy_->SynchronouslySetRootScrollOffset(total_scroll_offset_);
 }
 
 }  // namespace content