Update ffmpeg binaries directories to support variants based off the target architecture.

DEPS

 vars = {
   "webkit_trunk":
     "http://svn.webkit.org/repository/webkit/trunk",
   "webkit_revision": "48500",
+  "ffmpeg_revision": "26428",
 }
 
 deps = {
   "src/breakpad/src":
     "http://google-breakpad.googlecode.com/svn/trunk/src@391",
 
   "src/build/util/support":
     "/trunk/deps/support@20411",
 
   "src/googleurl":
@@ skipping 72 matching lines @@
 
 
 deps_os = {
   "win": {
     "src/third_party/cygwin":
       "/trunk/deps/third_party/cygwin@11984",
 
     "src/third_party/python_24":
       "/trunk/deps/third_party/python_24@22967",
 
-    "src/third_party/ffmpeg/binaries/chromium":
-      "/trunk/deps/third_party/ffmpeg/binaries/win@25436",
+    "src/third_party/ffmpeg/binaries/chromium/win/ia32":
+      "/trunk/deps/third_party/ffmpeg/binaries/win@" + Var("ffmpeg_revision"),
 
     "src/third_party/pthreads-win32":
       "/trunk/deps/third_party/pthreads-win32@26337",
   },
   "mac": {
     "src/third_party/GTM":
       "http://google-toolbox-for-mac.googlecode.com/svn/trunk@223",
     "src/third_party/pdfsqueeze":
       "http://pdfsqueeze.googlecode.com/svn/trunk@2",
     "src/third_party/WebKit/WebKit/mac":
       Var("webkit_trunk") + "/WebKit/mac@" + Var("webkit_revision"),
     "src/third_party/WebKit/WebKitLibraries":
       Var("webkit_trunk") + "/WebKitLibraries@" + Var("webkit_revision"),
-    "src/third_party/ffmpeg/binaries/chromium":
-      "/trunk/deps/third_party/ffmpeg/binaries/mac@25436",
+
+    "src/third_party/ffmpeg/binaries/chromium/mac/ia32":
+      "/trunk/deps/third_party/ffmpeg/binaries/mac@" + Var("ffmpeg_revision"),
+    "src/third_party/ffmpeg/binaries/chromium/mac/ia32_dbg":
+      "/trunk/deps/third_party/ffmpeg/binaries/mac_dbg@" +
+      Var("ffmpeg_revision"),
   },
   "unix": {
     # Linux, really.
     "src/third_party/xdg-utils":
       "/trunk/deps/third_party/xdg-utils@26314",
-    "src/third_party/ffmpeg/binaries/chromium":
-      "/trunk/deps/third_party/ffmpeg/binaries/linux@25436",
+
+    "src/third_party/ffmpeg/binaries/chromium/linux/ia32":
+      "/trunk/deps/third_party/ffmpeg/binaries/linux@" +
+      Var("ffmpeg_revision"),
+    "src/third_party/ffmpeg/binaries/chromium/linux/ia32_dbg":
+      "/trunk/deps/third_party/ffmpeg/binaries/linux_dbg@" +
+      Var("ffmpeg_revision"),
+
+    "src/third_party/ffmpeg/binaries/chromium/linux/x64":
+      "/trunk/deps/third_party/ffmpeg/binaries/linux_64@" +
+      Var("ffmpeg_revision"),
+    "src/third_party/ffmpeg/binaries/chromium/linux/x64_dbg":
+      "/trunk/deps/third_party/ffmpeg/binaries/linux_64_dbg@" +
+      Var("ffmpeg_revision"),
   },
 }
 
 
 include_rules = [
   # Everybody can use some things.
   "+base",
   "+build",
   "+ipc",
 
@@ skipping 27 matching lines @@
     # A change to a .gyp, .gypi, or to GYP itself should run the generator.
     "pattern": "\\.gypi?$|[/\\\\]src[/\\\\]tools[/\\\\]gyp[/\\\\]|[/\\\\]src[/\\\\]build[/\\\\]gyp_chromium$",
     "action": ["python", "src/build/gyp_chromium"],
   },
   {
     # Workaround IncrediBuild problem. http://crbug.com/17706.
     "pattern": "\\.grd$",
     "action": ["python", "src/build/win/clobber_generated_headers.py", "$matching_files"],
   },
 ]