roll chromium same as webrtc jun9

contains the following changes in chromium:
https://chromium.googlesource.com/chromium/src/+log/aa5126ff..7fa6701b

some trybot scripts failing.  build bots green before roll.  Will see if commit causes build bot failure.

TBR=kjellander@chromium.org
BUG=libyuv:626

Review URL: https://codereview.chromium.org/2146073004 .

.gn

@@ -40,6 +40,7 @@ exec_script_whitelist = [
   "//build/config/win/visual_studio_version.gni",
   "//build/gn_helpers.py",
   "//build/gypi_to_gn.py",
+  "//build/toolchain/concurrent_links.gni",
   "//build/toolchain/gcc_toolchain.gni",
   "//build/toolchain/mac/BUILD.gn",
   "//build/toolchain/win/BUILD.gn",

DEPS

@@ -7,7 +7,7 @@ vars = {
 
   # Roll the Chromium Git hash to pick up newer versions of all the
   # dependencies and tools linked to in setup_links.py.
-  'chromium_revision': 'aa5126ff66379a9060e87b010135f1aee7fc1ab2',
+  'chromium_revision': '7fa6701bc5183bd5a73203d4fe1309f75ccfd5b4',
 }
 
 # NOTE: Prefer revision numbers to tags for svn deps. Use http rather than

libyuv.gyp

@@ -33,6 +33,10 @@
        {
          'build_neon': 1,
        }],
+      ['OS=="android" and target_arch=="mipsel"', {
+        # Linking fails with the gold linker: bugs.webrtc.org/5977.
+        'linux_use_bundled_gold%': 0,
+      }],
     ],
   },