[tracing] Allow enabling heap profiling from chrome://flags

chrome/browser/flag_descriptions.cc

Index: chrome/browser/flag_descriptions.cc
diff --git a/chrome/browser/flag_descriptions.cc b/chrome/browser/flag_descriptions.cc
index 6127251646572b93a8d26b29bf6dfc34200a833f..275de07778a24d6bfe8dbbcc769bfce78a9e4baf 100644
--- a/chrome/browser/flag_descriptions.cc
+++ b/chrome/browser/flag_descriptions.cc
@@ -3049,4 +3049,14 @@ const char kAutoplayPolicyUserGestureRequired[] = "User gesture is required.";
 const char kAutoplayPolicyCrossOriginUserGestureRequired[] =
     "User gesture is required for cross-origin iframes.";
 
+const char kEnableHeapProfilingName[] = "Heap profiling";
+
+const char kEnableHeapProfilingDescription[] = "Enables heap profiling.";
+
+extern const char kEnableHeapProfilingModePseudo[] = "Enabled (pseudo mode)";

[Wez, 2017/04/28 17:17:12]

Why are these extern and not the ones above?

[DmitrySkiba, 2017/04/28 19:39:13]

Good catch, thanks!

+
+extern const char kEnableHeapProfilingModeNative[] = "Enabled (native mode)";
+
+extern const char kEnableHeapProfilingTaskProfiler[] = "Enabled (task mode)";
+
 }  // namespace flag_descriptions