Remove libwebm third_party dependency.

libwebm was used in remoting, but is not needed anymore.

Committed: https://crrev.com/c053fb4fec709c4a5a72065305ee4eb2da2efaa8
Cr-Commit-Position: refs/heads/master@{#309243}

Review URL: https://codereview.chromium.org/820593002

Cr-Commit-Position: refs/heads/master@{#309295}

BUILD.gn

@@ -95,7 +95,6 @@ group("root") {
     "//third_party/libpng",
     "//third_party/libsrtp",
     "//third_party/libusb",
-    "//third_party/libwebm",
     "//third_party/libwebp",
     "//third_party/libxslt",
     "//third_party/libvpx",

DEPS

@@ -296,9 +296,6 @@ deps = {
   'src/chrome/browser/resources/pdf/html_office':
     Var('chromium_git') + '/chromium/html-office-public.git' + '@' + 'eeff97614f65e0578529490d44d412032c3d7359',
 
-  'src/third_party/libwebm/source':
-   Var('chromium_git') + '/webm/libwebm.git' + '@' + '0d4cb404ea4195e5e21d04db2c955615535ce62e',
-
   'src/third_party/pdfium':
    'https://pdfium.googlesource.com/pdfium.git' + '@' +  Var('pdfium_revision'),
 

remoting/client/BUILD.gn

@@ -21,6 +21,5 @@ static_library("client") {
     "//remoting/protocol",
     "//third_party/libyuv",
     "//third_party/webrtc/modules/desktop_capture",
-    "//third_party/libwebm",
   ]
 }

remoting/remoting_client.gypi

@@ -42,7 +42,6 @@
         'remoting_protocol',
         '../third_party/libyuv/libyuv.gyp:libyuv',
         '../third_party/webrtc/modules/modules.gyp:desktop_capture',
-        '../third_party/libwebm/libwebm.gyp:libwebm',
       ],
       'sources': [
         '<@(remoting_client_sources)',

remoting/remoting_nacl.gyp

@@ -106,7 +106,6 @@
         '../net/net_nacl.gyp:net_nacl',
         '../third_party/libjingle/libjingle_nacl.gyp:libjingle_nacl',
         '../third_party/libvpx/libvpx_nacl.gyp:libvpx_nacl',
-        '../third_party/libwebm/libwebm_nacl.gyp:libwebm_nacl',
         '../third_party/libyuv/libyuv_nacl.gyp:libyuv_nacl',
         '../third_party/boringssl/boringssl_nacl.gyp:boringssl_nacl',
         '../third_party/opus/opus_nacl.gyp:opus_nacl',
@@ -170,7 +169,6 @@
           '>(tc_lib_dir_pnacl_newlib)/libremoting_webrtc_nacl.a',
           '>(tc_lib_dir_pnacl_newlib)/liburl_nacl.a',
           '>(tc_lib_dir_pnacl_newlib)/libvpx_nacl.a',
-          '>(tc_lib_dir_pnacl_newlib)/libwebm_nacl.a',
           '>(tc_lib_dir_pnacl_newlib)/libyuv_nacl.a',
         ],
       },
@@ -191,7 +189,6 @@
         '../third_party/icu/icu_nacl.gyp:icui18n_nacl',
         '../third_party/icu/icu_nacl.gyp:icuuc_nacl',
         '../third_party/libjingle/libjingle_nacl.gyp:libjingle_nacl',
-        '../third_party/libwebm/libwebm_nacl.gyp:libwebm_nacl',
         '../third_party/libyuv/libyuv_nacl.gyp:libyuv_nacl',
         '../third_party/modp_b64/modp_b64_nacl.gyp:modp_b64_nacl',
         '../third_party/boringssl/boringssl_nacl.gyp:boringssl_nacl',
@@ -230,7 +227,6 @@
         '-licuuc_nacl',
         '-licudata_nacl',
         '-lprotobuf_lite_nacl',
-        '-lwebm_nacl',
 
         # Base NaCl libraries.
         '-lppapi_cpp',