Fix builder name references

... as a result of https://codereview.chromium.org/14517004/
(SkipBuildbotRuns)

R=bensong@google.com, rmistry@google.com, senorblanco@chromium.org

Review URL: https://codereview.chromium.org/14544003

git-svn-id: http://skia.googlecode.com/svn/trunk@8921 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/bench/bench_graph_svg.py b/bench/bench_graph_svg.py
index 57be7ea..433ede4 100644
--- a/bench/bench_graph_svg.py
+++ b/bench/bench_graph_svg.py
@@ -20,7 +20,7 @@
 MAX_REASONABLE_TIME = 99999
 
 # Constants for prefixes in output title used in buildbot.
-TITLE_PREAMBLE = 'Bench_Performance_for_Skia_'
+TITLE_PREAMBLE = 'Bench_Performance_for_'
 TITLE_PREAMBLE_LENGTH = len(TITLE_PREAMBLE)
 
 def usage():
@@ -489,7 +489,7 @@
         time_to_ignore = None
 
     # The title flag (-l) provided in buildbot slave is in the format
-    # Bench_Performance_for_Skia_<platform>, and we want to extract <platform>
+    # Bench_Performance_for_<platform>, and we want to extract <platform>
     # for use in platform_and_alg to track matching benches later. If title flag
     # is not in this format, there may be no matching benches in the file
     # provided by the expectation_file flag (-e).