third_party/WebKit/Source/core/html/parser/HTMLResourcePreloader.cpp - Issue 1987013002: Add UMA to track time between preload discovery and reference

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Unified Diff: third_party/WebKit/Source/core/html/parser/HTMLResourcePreloader.cpp

Issue 1987013002: Add UMA to track time between preload discovery and reference (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@preload_timing_uma

Patch Set: update histograms.xml to be a bit clearer Created 4 years, 7 months ago

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Index: third_party/WebKit/Source/core/html/parser/HTMLResourcePreloader.cpp

diff --git a/third_party/WebKit/Source/core/html/parser/HTMLResourcePreloader.cpp b/third_party/WebKit/Source/core/html/parser/HTMLResourcePreloader.cpp

index dff65e3e298a299c93a3726db1ac60920224bcfb..efa3ff9888501b7820794455df1864f89eff6acd 100644

--- a/third_party/WebKit/Source/core/html/parser/HTMLResourcePreloader.cpp

+++ b/third_party/WebKit/Source/core/html/parser/HTMLResourcePreloader.cpp

@@ -75,7 +75,7 @@ void HTMLResourcePreloader::preload(PassOwnPtr<PreloadRequest> preload, const Ne

return;

if (preload->resourceType() == Resource::Script || preload->resourceType() == Resource::CSSStyleSheet || preload->resourceType() == Resource::ImportResource)

request.setCharset(preload->charset().isEmpty() ? m_document->characterSet().getString() : preload->charset());

- request.setForPreload(true);

+ request.setForPreload(true, preload->discoveryTime());

int duration = static_cast<int>(1000 * (monotonicallyIncreasingTime() - preload->discoveryTime()));

DEFINE_STATIC_LOCAL(CustomCountHistogram, preloadDelayHistogram, ("WebCore.PreloadDelayMs", 0, 2000, 20));

preloadDelayHistogram.count(duration);

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