Include pdfviewer in everything.

This simplifies the process for building pdfviewer. Now it can be
built using

./gyp_skia

make pdfviewer

(ninja can also be used).

R=edisonn@google.com

Review URL: https://codereview.chromium.org/70353003

git-svn-id: http://skia.googlecode.com/svn/trunk@12288 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/gyp/everything.gyp b/gyp/everything.gyp
index 8758cc6..9bd825e 100644
--- a/gyp/everything.gyp
+++ b/gyp/everything.gyp
@@ -19,7 +19,10 @@
         ['skia_os in ("ios", "android", "chromeos") or (skia_os == "mac" and skia_arch_width == 32)', {
           # debugger is not supported on this platform
         }, {
-          'dependencies': [ 'debugger.gyp:debugger' ],
+          'dependencies': [
+            'debugger.gyp:debugger',
+            'pdfviewer.gyp:pdfviewer',
+            ],
         }],
         # DM assumes you've got a GPU.
         ['skia_gpu == 1', {