Run clang-format on Core

This copies over formatting changes from the Widevine CDM repository
that resulted from running clang-format with Google style on the
shared core/ directory. It also copies over some rewordings of log
messages that were made at the same time.

Aside from the changed log messages, this should not affect behavior
or functionality.

Change-Id: I69c57c188f7a79f30fa3517afeed17365929b6b6

libwvdrmengine/cdm/core/include/lock.h

@@ -29,7 +29,7 @@ class Lock {
 
  private:
   class Impl;
-  Impl *impl_;
+  Impl* impl_;
 
   CORE_DISALLOW_COPY_AND_ASSIGN(Lock);
 };
@@ -38,20 +38,14 @@ class Lock {
 // is constructed and release when AutoLock goes out of scope.
 class AutoLock {
  public:
-  explicit AutoLock(Lock& lock) : lock_(&lock) {
-    lock_->Acquire();
-  }
+  explicit AutoLock(Lock& lock) : lock_(&lock) { lock_->Acquire(); }
 
-  explicit AutoLock(Lock* lock) : lock_(lock) {
-    lock_->Acquire();
-  }
+  explicit AutoLock(Lock* lock) : lock_(lock) { lock_->Acquire(); }
 
-  ~AutoLock() {
-    lock_->Release();
-  }
+  ~AutoLock() { lock_->Release(); }
 
  private:
-  Lock *lock_;
+  Lock* lock_;
 
   CORE_DISALLOW_COPY_AND_ASSIGN(AutoLock);
 };