Move implementation from header to source.

base/tracked.cc

Index: base/tracked.cc
diff --git a/base/tracked.cc b/base/tracked.cc
index fdac6d3ad7e4b0645d00e035d455e5cc9a7b0c92..f07f5bf9a02a11123513b8ffc88874333e2983c4 100644
--- a/base/tracked.cc
+++ b/base/tracked.cc
@@ -12,6 +12,28 @@ using base::TimeTicks;
 namespace tracked_objects {
 
 //------------------------------------------------------------------------------
+
+Location::Location(const char* function_name, const char* file_name,
+                   int line_number)
+    : function_name_(function_name),
+      file_name_(file_name),
+      line_number_(line_number) {
+}
+
+Location::Location()
+    : function_name_("Unknown"),
+      file_name_("Unknown"),
+      line_number_(-1) {
+}
+
+bool Location::operator < (const Location& other) const {
+  if (line_number_ != other.line_number_)
+    return line_number_ < other.line_number_;
+  if (file_name_ != other.file_name_)
+    return file_name_ < other.file_name_;
+  return function_name_ < other.function_name_;
+}
+
 void Location::Write(bool display_filename, bool display_function_name,
                      std::string* output) const {
   StringAppendF(output, "%s[%d] ",