Revert of cc/paint: Remove cc::PaintSurface.

content/renderer/media_capture_from_element/html_video_element_capturer_source.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/media_capture_from_element/html_video_element_capturer_source.h"
 
 #include "base/location.h"
 #include "base/memory/ptr_util.h"
 #include "base/single_thread_task_runner.h"
 #include "base/threading/thread_task_runner_handle.h"
 #include "base/trace_event/trace_event.h"
-#include "cc/paint/skia_paint_canvas.h"
+#include "cc/paint/paint_canvas.h"
+#include "cc/paint/paint_surface.h"
 #include "content/public/renderer/render_thread.h"
 #include "content/renderer/media/media_stream_video_source.h"
 #include "content/renderer/media/webrtc_uma_histograms.h"
 #include "media/base/limits.h"
 #include "media/blink/webmediaplayer_impl.h"
 #include "skia/ext/platform_canvas.h"
 #include "third_party/WebKit/public/platform/WebMediaPlayer.h"
 #include "third_party/WebKit/public/platform/WebRect.h"
 #include "third_party/WebKit/public/platform/WebSize.h"
 #include "third_party/libyuv/include/libyuv.h"
@@ skipping 63 matching lines @@
            << media::VideoCaptureFormat::ToString(params.requested_format);
   DCHECK(params.requested_format.IsValid());
   DCHECK(thread_checker_.CalledOnValidThread());
 
   running_callback_ = running_callback;
   if (!web_media_player_ || !web_media_player_->hasVideo()) {
     running_callback_.Run(false);
     return;
   }
   const blink::WebSize resolution = web_media_player_->naturalSize();
-  if (!bitmap_.tryAllocPixels(
-          SkImageInfo::MakeN32Premul(resolution.width, resolution.height))) {
+  surface_ = cc::PaintSurface::MakeRasterN32Premul(resolution.width,
+                                                   resolution.height);
+  if (!surface_) {
     running_callback_.Run(false);
     return;
   }
-  canvas_ = base::MakeUnique<cc::SkiaPaintCanvas>(bitmap_);
 
   new_frame_callback_ = new_frame_callback;
   // Force |capture_frame_rate_| to be in between k{Min,Max}FramesPerSecond.
   capture_frame_rate_ =
       std::max(kMinFramesPerSecond,
                std::min(static_cast<float>(media::limits::kMaxFramesPerSecond),
                         params.requested_format.frame_rate));
 
   running_callback_.Run(true);
   base::ThreadTaskRunnerHandle::Get()->PostTask(
@@ skipping 13 matching lines @@
   DVLOG(3) << __func__;
   TRACE_EVENT0("video", "HtmlVideoElementCapturerSource::sendNewFrame");
   DCHECK(thread_checker_.CalledOnValidThread());
 
   if (!web_media_player_ || new_frame_callback_.is_null())
     return;
 
   const base::TimeTicks current_time = base::TimeTicks::Now();
   const blink::WebSize resolution = web_media_player_->naturalSize();
 
+  cc::PaintCanvas* canvas = surface_->getCanvas();
   cc::PaintFlags flags;
   flags.setBlendMode(SkBlendMode::kSrc);
   flags.setFilterQuality(kLow_SkFilterQuality);
   web_media_player_->paint(
-      canvas_.get(), blink::WebRect(0, 0, resolution.width, resolution.height),
-      flags);
-  DCHECK_NE(kUnknown_SkColorType, canvas_->imageInfo().colorType());
-  DCHECK_EQ(canvas_->imageInfo().width(), resolution.width);
-  DCHECK_EQ(canvas_->imageInfo().height(), resolution.height);
+      canvas, blink::WebRect(0, 0, resolution.width, resolution.height), flags);
+  DCHECK_NE(kUnknown_SkColorType, canvas->imageInfo().colorType());
+  DCHECK_EQ(canvas->imageInfo().width(), resolution.width);
+  DCHECK_EQ(canvas->imageInfo().height(), resolution.height);
 
-  DCHECK_NE(kUnknown_SkColorType, bitmap_.colorType());
-  DCHECK(!bitmap_.drawsNothing());
-  DCHECK(bitmap_.getPixels());
-  if (bitmap_.colorType() != kN32_SkColorType) {
+  SkBitmap bitmap;
+  bitmap.setInfo(canvas->imageInfo());
+  canvas->readPixels(&bitmap, 0, 0);
+
+  DCHECK_NE(kUnknown_SkColorType, bitmap.colorType());
+  DCHECK(!bitmap.drawsNothing());
+  DCHECK(bitmap.getPixels());
+  if (bitmap.colorType() != kN32_SkColorType) {
     DLOG(ERROR) << "Only supported color type is kN32_SkColorType (ARGB/ABGR)";
     return;
   }
 
   scoped_refptr<media::VideoFrame> frame = frame_pool_.CreateFrame(
       media::PIXEL_FORMAT_I420, resolution, gfx::Rect(resolution), resolution,
       base::TimeTicks::Now() - base::TimeTicks());
   DCHECK(frame);
 
   const uint32 source_pixel_format =
       (kN32_SkColorType == kRGBA_8888_SkColorType) ? libyuv::FOURCC_ABGR
                                                    : libyuv::FOURCC_ARGB;
 
-  if (libyuv::ConvertToI420(
-          static_cast<uint8*>(bitmap_.getPixels()), bitmap_.getSize(),
-          frame->data(media::VideoFrame::kYPlane),
-          frame->stride(media::VideoFrame::kYPlane),
-          frame->data(media::VideoFrame::kUPlane),
-          frame->stride(media::VideoFrame::kUPlane),
-          frame->data(media::VideoFrame::kVPlane),
-          frame->stride(media::VideoFrame::kVPlane), 0 /* crop_x */,
-          0 /* crop_y */, bitmap_.info().width(), bitmap_.info().height(),
-          frame->coded_size().width(), frame->coded_size().height(),
-          libyuv::kRotate0, source_pixel_format) == 0) {
+  if (libyuv::ConvertToI420(static_cast<uint8*>(bitmap.getPixels()),
+                            bitmap.getSize(),
+                            frame->data(media::VideoFrame::kYPlane),
+                            frame->stride(media::VideoFrame::kYPlane),
+                            frame->data(media::VideoFrame::kUPlane),
+                            frame->stride(media::VideoFrame::kUPlane),
+                            frame->data(media::VideoFrame::kVPlane),
+                            frame->stride(media::VideoFrame::kVPlane),
+                            0 /* crop_x */,
+                            0 /* crop_y */,
+                            bitmap.info().width(),
+                            bitmap.info().height(),
+                            frame->coded_size().width(),
+                            frame->coded_size().height(),
+                            libyuv::kRotate0,
+                            source_pixel_format) == 0) {
     // Success!
     io_task_runner_->PostTask(
         FROM_HERE, base::Bind(new_frame_callback_, frame, current_time));
   }
 
   // Calculate the time in the future where the next frame should be created.
   const base::TimeDelta frame_interval =
       base::TimeDelta::FromMicroseconds(1E6 / capture_frame_rate_);
   if (next_capture_time_.is_null()) {
     next_capture_time_ = current_time + frame_interval;
   } else {
     next_capture_time_ += frame_interval;
     // Don't accumulate any debt if we are lagging behind - just post next frame
     // immediately and continue as normal.
     if (next_capture_time_ < current_time)
       next_capture_time_ = current_time;
   }
   // Schedule next capture.
   base::ThreadTaskRunnerHandle::Get()->PostDelayedTask(
       FROM_HERE, base::Bind(&HtmlVideoElementCapturerSource::sendNewFrame,
                             weak_factory_.GetWeakPtr()),
       next_capture_time_ - current_time);
 }
 
 }  // namespace content