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Unified Diff: content/public/browser/render_process_host.h

Issue 1671933002: Create and pass shared-histogram-allocator from browser to renderer. (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@hsm-merge
Patch Set: addressd more review comments by Alexei; refactored & extended tests Created 4 years, 9 months ago
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Index: content/public/browser/render_process_host.h
diff --git a/content/public/browser/render_process_host.h b/content/public/browser/render_process_host.h
index 62d65fca999490f31592be64bad59f5327b45c8c..037dc212e15c6c22957dca0f1273e550b5182e3e 100644
--- a/content/public/browser/render_process_host.h
+++ b/content/public/browser/render_process_host.h
@@ -22,6 +22,7 @@
class GURL;
namespace base {
+class SharedPersistentMemoryAllocator;
class TimeDelta;
}
@@ -258,6 +259,14 @@ class CONTENT_EXPORT RenderProcessHost : public IPC::Sender,
// Returns the ServiceRegistry for this process.
virtual ServiceRegistry* GetServiceRegistry() = 0;
+ // Extracts any persistent-memory-allocator used for renderer metrics.
+ // Ownership is passed to the caller. To support sharing of histogram data
+ // between the Renderer and the Browser, the allocator is created when the
+ // process is created and later retrieved by the SubprocessMetricsProvider
+ // for management.
+ virtual scoped_ptr<base::SharedPersistentMemoryAllocator>
+ ExtractMetricsAllocator() = 0;
+
// PlzNavigate
// Returns the time the first call to Init completed successfully (after a new
// renderer process was created); further calls to Init won't change this

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