telemetry: separated stats collection from metrics calculation.

tools/perf/metrics/gpu_rendering_stats.py

Index: tools/perf/metrics/gpu_rendering_stats.py
diff --git a/tools/perf/metrics/gpu_rendering_stats.py b/tools/perf/metrics/gpu_rendering_stats.py
new file mode 100644
index 0000000000000000000000000000000000000000..0211841c90b75e427d6bc234b390fd9ddbf64ff2
--- /dev/null
+++ b/tools/perf/metrics/gpu_rendering_stats.py
@@ -0,0 +1,47 @@
+# Copyright (c) 2013 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.
+
+class GpuRenderingStats(object):
+  def __init__(self, rendering_stats_deltas):
+    rs = rendering_stats_deltas
+
+    # Scroll Stats
+    self.total_time = rs.get('totalTimeInSeconds', 0)
+    self.screen_frame_count = rs.get('numFramesSentToScreen', 0)
+    self.dropped_frame_count = rs.get('droppedFrameCount', 0)
+    self.impl_thread_scroll_count = rs.get('numImplThreadScrolls', 0)
+    self.main_thread_scroll_count = rs.get('numMainThreadScrolls', 0)
+    self.drawn_layers_count = rs.get('numLayersDrawn', 0)
+    self.missing_tile_count = rs.get('numMissingTiles', 0)
+
+    # Texture Upload Stats
+    self.texture_upload_count = rs.get('textureUploadCount', 0)
+    self.texture_upload_time = rs.get('totalTextureUploadTimeInSeconds', 0)
+    self.commit_count = rs.get('totalCommitCount', 0)
+    self.commit_time = rs.get('totalCommitTimeInSeconds', 0)
+
+    # Image Decoding Stats
+    self.deferred_image_decode_count = rs.get(
+        'totalDeferredImageDecodeCount', 0)
+    self.deferred_image_decode_time = rs.get(
+        'totalDeferredImageDecodeTimeInSeconds', 0)
+    self.deferred_image_cache_hits = rs.get(
+        'totalDeferredImageCacheHitCount', 0)
+    self.image_gathering_count = rs.get('totalImageGatheringCount', 0)
+    self.image_gathering_time = rs.get('totalImageGatheringTimeInSeconds', 0)
+
+    # Tile Analysis Stats
+    self.tile_analysis_count = rs.get('totalTilesAnalyzed', 0)
+    self.tile_analysis_time = rs.get('totalTileAnalysisTimeInSeconds', 0)
+    self.solid_color_tile_analysis_count = rs.get('solidColorTilesAnalyzed', 0)
+
+    # Latency Stats
+    self.input_event_count = rs.get('inputEventCount', 0)
+    self.input_event_latency = rs.get('totalInputLatency', 0)
+    self.touch_ui_count = rs.get('touchUICount', 0)
+    self.touch_ui_latency = rs.get('totalTouchUILatency', 0)
+    self.touch_acked_count = rs.get('touchAckedCount', 0)
+    self.touch_acked_latency = rs.get('totalTouchAckedLatency', 0)
+    self.scroll_update_count = rs.get('scrollUpdateCount', 0)
+    self.scroll_update_latency = rs.get('totalScrollUpdateLatency', 0)