Roll trace-viewer deps to the latest.

Modify tracing_ui.cc to add record-as-much-as-possible mode for about://tracing.
This time, the roll should decrease trace-viewer size from 1.6 M -> 1.4 M with
minification using rjsmin.

Verified that the size of resources.pak reduces from 17278967 to 16888789.

BUG=396081, 471610, 469646

Review URL: https://codereview.chromium.org/1066903002

Cr-Commit-Position: refs/heads/master@{#324192}

DEPS

@@ -132,7 +132,7 @@ deps = {
    Var('chromium_git') + '/crashpad/crashpad.git' + '@' + 'e1347a740c051d9a44aa2dd0b9d11067a53e0447',
 
   'src/third_party/trace-viewer':
-   Var('chromium_git') + '/external/trace-viewer.git' + '@' + 'ff20313e37892c3c7f20c88bb22ab6f6e65659ae',
+   Var('chromium_git') + '/external/trace-viewer.git' + '@' + '07909fe53e549b42634142ef07d1eb970d94b3d3',
 
   'src/third_party/WebKit':
    Var('chromium_git') + '/chromium/blink.git' + '@' +  Var('webkit_revision'),

content/browser/tracing/tracing_ui.cc

@@ -86,20 +86,16 @@ bool GetTracingOptions(const std::string& data64,
   options_ok &= options->GetString("categoryFilter", &category_filter_string);
   *category_filter = base::trace_event::CategoryFilter(category_filter_string);
 
+  std::string record_mode;
+  options_ok &=
+      options->GetString("tracingRecordMode", &record_mode);
+  options_ok &= tracing_options->SetFromString(record_mode);
+
   options_ok &= options->GetBoolean("useSystemTracing",
                                     &tracing_options->enable_systrace);
   options_ok &=
       options->GetBoolean("useSampling", &tracing_options->enable_sampling);
 
-  bool use_continuous_tracing;
-  options_ok &=
-      options->GetBoolean("useContinuousTracing", &use_continuous_tracing);
-
-  if (use_continuous_tracing)
-    tracing_options->record_mode = base::trace_event::RECORD_CONTINUOUSLY;
-  else
-    tracing_options->record_mode = base::trace_event::RECORD_UNTIL_FULL;
-
   if (!options_ok) {
     LOG(ERROR) << "Malformed options";
     return false;

tools/telemetry/telemetry/value/trace.py

@@ -7,6 +7,7 @@ import logging
 import os
 import random
 import shutil
+import StringIO
 import sys
 import tempfile
 
@@ -39,15 +40,17 @@ class TraceValue(value_module.Value):
     self._serialized_file_handle = None
 
   def _GetTempFileHandle(self, trace_data):
-    tf = tempfile.NamedTemporaryFile(delete=False, suffix='.html')
     if self.page:
       title = self.page.display_name
     else:
       title = ''
+    content = StringIO.StringIO()
     trace2html.WriteHTMLForTraceDataToFile(
         [trace_data.GetEventsFor(trace_data_module.CHROME_TRACE_PART)],
         title,
-        tf)
+        content)
+    tf = tempfile.NamedTemporaryFile(delete=False, suffix='.html')
+    tf.write(content.getvalue().encode('utf-8'))
     tf.close()
     return file_handle.FromTempFile(tf)