third_party/WebKit/Source/core/css/RemoteFontFaceSource.h - Issue 2359493004: FontLoadHistograms: classify as memory cache hit if FontResource loading not triggered

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Issue 2359493004: FontLoadHistograms: classify as memory cache hit if FontResource loading not triggered (Closed)

Patch Set: use isLoadStartedCalled() in longLimitExceeded() Created 4 years, 2 months ago

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1 // Copyright 2014 The Chromium Authors. All rights reserved.	1 // Copyright 2014 The Chromium Authors. All rights reserved.

2 // Use of this source code is governed by a BSD-style license that can be	2 // Use of this source code is governed by a BSD-style license that can be

3 // found in the LICENSE file.	3 // found in the LICENSE file.

4	4

5 #ifndef RemoteFontFaceSource_h	5 #ifndef RemoteFontFaceSource_h

6 #define RemoteFontFaceSource_h	6 #define RemoteFontFaceSource_h

7	7

8 #include "core/css/CSSFontFaceSource.h"	8 #include "core/css/CSSFontFaceSource.h"

9 #include "core/fetch/FontResource.h"	9 #include "core/fetch/FontResource.h"

10 #include "wtf/Allocator.h"	10 #include "wtf/Allocator.h"

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68 FontLoadHistograms(DataSource dataSource) : m_loadStartTime(0), m_blankP aintTime(0), m_isLongLimitExceeded(false), m_dataSource(dataSource) { }	68 FontLoadHistograms(DataSource dataSource) : m_loadStartTime(0), m_blankP aintTime(0), m_isLongLimitExceeded(false), m_dataSource(dataSource) { }

69 void loadStarted();	69 void loadStarted();

70 void fallbackFontPainted(DisplayPeriod);	70 void fallbackFontPainted(DisplayPeriod);

71 void fontLoaded(bool isInterventionTriggered);	71 void fontLoaded(bool isInterventionTriggered);

72 void longLimitExceeded(bool isInterventionTriggered);	72 void longLimitExceeded(bool isInterventionTriggered);

73 void recordFallbackTime(const FontResource*);	73 void recordFallbackTime(const FontResource*);

74 void recordRemoteFont(const FontResource*);	74 void recordRemoteFont(const FontResource*);

75 bool hadBlankText() { return m_blankPaintTime; }	75 bool hadBlankText() { return m_blankPaintTime; }

76 DataSource dataSource() { return m_dataSource; }	76 DataSource dataSource() { return m_dataSource; }

77 void maySetDataSource(DataSource dataSource) { m_dataSource = (m_dataSou rce != FromUnknown) ? m_dataSource : dataSource; }	77 void maySetDataSource(DataSource dataSource) { m_dataSource = (m_dataSou rce != FromUnknown) ? m_dataSource : dataSource; }

	78 bool isLoadStartedCalled() const { return m_loadStartTime != 0; }

78 private:	79 private:

79 void recordLoadTimeHistogram(const FontResource*, int duration);	80 void recordLoadTimeHistogram(const FontResource*, int duration);

80 void recordInterventionResult(bool isTriggered);	81 void recordInterventionResult(bool isTriggered);

81 CacheHitMetrics dataSourceMetricsValue();	82 CacheHitMetrics dataSourceMetricsValue();

82 double m_loadStartTime;	83 double m_loadStartTime;

83 double m_blankPaintTime;	84 double m_blankPaintTime;

84 bool m_isLongLimitExceeded;	85 bool m_isLongLimitExceeded;

85 DataSource m_dataSource;	86 DataSource m_dataSource;

86 };	87 };

87	88

88 void switchToSwapPeriod();	89 void switchToSwapPeriod();

89 void switchToFailurePeriod();	90 void switchToFailurePeriod();

90 bool shouldTriggerWebFontsIntervention();	91 bool shouldTriggerWebFontsIntervention();

91	92

92 Member<FontResource> m_font;	93 Member<FontResource> m_font;

93 Member<CSSFontSelector> m_fontSelector;	94 Member<CSSFontSelector> m_fontSelector;

94 const FontDisplay m_display;	95 const FontDisplay m_display;

95 DisplayPeriod m_period;	96 DisplayPeriod m_period;

96 FontLoadHistograms m_histograms;	97 FontLoadHistograms m_histograms;

97 bool m_isInterventionTriggered;	98 bool m_isInterventionTriggered;

98 };	99 };

99	100

100 } // namespace blink	101 } // namespace blink

101	102

102 #endif	103 #endif

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