Revert 261906 "cc: Add picture recording modes for benchmarking"

Suspected of causing gcm_unit_tests failures

http://build.chromium.org/p/chromium.mac/buildstatus?builder=Mac10.7%20Tests%20%282%29&number=25118

Will file a bug that gcm_unit_tests isn't in default tryjob set if this is actually the cause.

> cc: Add picture recording modes for benchmarking
> 
> This patch adds three different picture recording modes for benchmarking
> purposes:
> 
> 1. RECORD_NORMALLY. This is the default and produces a normal recording
>    as before.
> 
> 2. RECORD_WITH_NULL_CANVAS. This mode uses SkNullCanvas to avoid (most
>    of) the Skia processing that happen during recording. Can be used to
>    estimate the recording workload inside Blink.
> 
> 3. RECORD_WITH_PAINTING_DISABLED. Passes a NULL canvas to Blink, which
>    causes the GraphicsContext object to disable painting. This mode
>    gives an estimate of the recording workload of Blink excluding the
>    processing inside GraphicsContext.
> 
> This patch also modifies the rasterize_and_record_micro benchmark to
> report the recording time for each mode (record_time_ms,
> record_time_null_canvas_ms and record_time_painting_disabled_ms
> respectively).
> 
> Anecdotally on a z600 and the key_silk_cases page set, SkNullCanvas cuts
> recording time to 50% and disabling painting down to 19%.
> 
> BUG=357572
> TEST=PictureTest.RecordingModes
> TEST=tools/perf/run_benchmark rasterize_and_record_micro.key_silk_cases --browser=release
> 
> Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=261543
> 
> Review URL: https://codereview.chromium.org/216933002

TBR=skyostil@chromium.org

Review URL: https://codereview.chromium.org/226083007

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@261914 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 16 insertions, 31 deletions

diff --git a/cc/debug/rasterize_and_record_benchmark.cc b/cc/debug/rasterize_and_record_benchmark.cc
index e41c968..ab8d1cb 100644
--- a/cc/debug/rasterize_and_record_benchmark.cc
+++ b/cc/debug/rasterize_and_record_benchmark.cc
@@ -6,10 +6,8 @@
 
 #include <algorithm>
 #include <limits>
-#include <string>
 
 #include "base/basictypes.h"
-#include "base/strings/stringprintf.h"
 #include "base/values.h"
 #include "cc/debug/rasterize_and_record_benchmark_impl.h"
 #include "cc/layers/layer.h"
@@ -24,9 +22,6 @@ namespace {
 
 const int kDefaultRecordRepeatCount = 100;
 
-const char* kModeSuffixes[Picture::RECORDING_MODE_COUNT] = {
-    "", "_sk_null_canvas", "_painting_disabled"};
-
 base::TimeTicks Now() {
   return base::TimeTicks::IsThreadNowSupported()
              ? base::TimeTicks::ThreadNow()
@@ -66,12 +61,8 @@ void RasterizeAndRecordBenchmark::DidUpdateLayers(LayerTreeHost* host) {
   DCHECK(!results_.get());
   results_ = make_scoped_ptr(new base::DictionaryValue);
   results_->SetInteger("pixels_recorded", record_results_.pixels_recorded);
-
-  for (int i = 0; i < Picture::RECORDING_MODE_COUNT; i++) {
-    std::string name = base::StringPrintf("record_time%s_ms", kModeSuffixes[i]);
-    results_->SetDouble(name,
-                        record_results_.total_best_time[i].InMillisecondsF());
-  }
+  results_->SetDouble("record_time_ms",
+                      record_results_.total_best_time.InMillisecondsF());
   main_thread_benchmark_done_ = true;
 }
 
@@ -116,27 +107,21 @@ void RasterizeAndRecordBenchmark::RunOnLayer(PictureLayer* layer) {
   if (visible_content_rect.IsEmpty())
     return;
 
-  for (int mode_index = 0; mode_index < Picture::RECORDING_MODE_COUNT;
-       mode_index++) {
-    Picture::RecordingMode mode =
-        static_cast<Picture::RecordingMode>(mode_index);
-    base::TimeDelta min_time = base::TimeDelta::Max();
-    for (int i = 0; i < record_repeat_count_; ++i) {
-      base::TimeTicks start = Now();
-      scoped_refptr<Picture> picture = Picture::Create(
-          visible_content_rect, painter, tile_grid_info, false, 0, mode);
-      base::TimeTicks end = Now();
-      base::TimeDelta duration = end - start;
-      if (duration < min_time)
-        min_time = duration;
-    }
-
-    if (mode == Picture::RECORD_NORMALLY) {
-      record_results_.pixels_recorded +=
-          visible_content_rect.width() * visible_content_rect.height();
-    }
-    record_results_.total_best_time[mode_index] += min_time;
+
+  base::TimeDelta min_time = base::TimeDelta::Max();
+  for (int i = 0; i < record_repeat_count_; ++i) {
+    base::TimeTicks start = Now();
+    scoped_refptr<Picture> picture = Picture::Create(
+        visible_content_rect, painter, tile_grid_info, false, 0);
+    base::TimeTicks end = Now();
+    base::TimeDelta duration = end - start;
+    if (duration < min_time)
+      min_time = duration;
   }
+
+  record_results_.pixels_recorded +=
+      visible_content_rect.width() * visible_content_rect.height();
+  record_results_.total_best_time += min_time;
 }
 
 RasterizeAndRecordBenchmark::RecordResults::RecordResults()