Move third_party/html_office to chrome/browser/resources/pdf

This moves third_party/html_office to chrome/browser/resources/pdf. Currently
html_office is only used by the pdf component extension, it isn't third_party
code and it's more difficult to use the code from it's current location.
The repo is also still empty so this shouldn't result in a lot of dwarf files.

BUG=303491

Review URL: https://codereview.chromium.org/131643003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@245442 0039d316-1c4b-4281-b951-d872f2087c98

.gitignore

@@ -69,6 +69,7 @@ v8.log
 /chrome/browser/internal
 /chrome/browser/performance_monitor/performance_monitor.xml
 /chrome/browser/protector/internal
+/chrome/browser/resources/pdf/html_office
 /chrome/browser/resources/settings_internal/
 /chrome/browser/resources/software_rendering_list
 /chrome/browser/search_engines/prepopulated_engines.xml
@@ -221,7 +222,6 @@ v8.log
 /third_party/googlemac
 /third_party/gperf
 /third_party/guava/src
-/third_party/html_office
 /third_party/httpcomponents-client
 /third_party/httpcomponents-core
 /third_party/hunspell

DEPS

@@ -290,7 +290,7 @@ deps = {
   "src/third_party/cld_2/src":
     (Var("googlecode_url") % "cld2") + "/trunk@84",
 
-  "src/third_party/html_office":
+  "src/chrome/browser/resources/pdf/html_office":
      Var("chromium_git") +
          "/chromium/html-office-public.git@1d04f3dfbd8bd604190dfb6f5a030d30233ba6ea",